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NVS Lab Attendant Mock Test - 8 - NVS TGT/PGT MCQ


Test Description

30 Questions MCQ Test NVS Lab Attendant Exam Mock Test Series 2026 - NVS Lab Attendant Mock Test - 8

NVS Lab Attendant Mock Test - 8 for NVS TGT/PGT 2025 is part of NVS Lab Attendant Exam Mock Test Series 2026 preparation. The NVS Lab Attendant Mock Test - 8 questions and answers have been prepared according to the NVS TGT/PGT exam syllabus.The NVS Lab Attendant Mock Test - 8 MCQs are made for NVS TGT/PGT 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for NVS Lab Attendant Mock Test - 8 below.
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NVS Lab Attendant Mock Test - 8 - Question 1

Looking at a portrait of a man, Hari said, “His mother is the wife of my father’s son. Brothers and sisters I have none. At whose portrait was Hari looking?

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 1

Hari has no brother or sister.
So, he is his father’s only son, wife of Hari’s father’s son - Hari’s wife
Hari’s wife is the man’s mother.
Man is Hari’s son.

NVS Lab Attendant Mock Test - 8 - Question 2

Directions to Solve

In each of the following questions find out the alternative which will replace the question mark.

Question -

Flow : River :: Stagnant : ?

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 2

As Water of a River flows similarly water of Pool is Stagnant.

NVS Lab Attendant Mock Test - 8 - Question 3

A man walks 30 meters towards South, then turning to his right, he walks 30 meters, then turning to his left, he walks 20 meters, again turning to his left, he walks 30 meters. How far is he from his starting point ?

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 3

A man walks 30 meters towards South, then turning to his right, he walks 30 meters, then turning to his left, he walks 20 meters, again turning to his left, he walks 30 meters. The figure are given below -

50 meters far is he from his starting point.

Hence, "50 meters" is the correct answer.

NVS Lab Attendant Mock Test - 8 - Question 4

Directions: Each of the following consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question.

 A, B, C, D and E are sitting around a circle and facing away from the centre. Who sits second to the right of B?
Statement I: A sits to the immediate left of C. D sits second to the right of A.
Statement II: D sits immediately between E and B. B sits to the immediate left of A.

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 4

From Statement 1:
A sits to the immediate left of C.
D sits second to the right of A.

From the statement, we cannot determine who sits second to the right of B.
From Statement 2:
D sits immediately between E and B.
B sits to the immediate left of A.

From the statement, C sits second to the right of B.
Hence option C is correct.

NVS Lab Attendant Mock Test - 8 - Question 5

Directions to Solve

In each of the following questions find out the alternative which will replace the question mark.

Question -

Race : Fatigue :: Fast : ?

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 5

As the result of Race is Fatigue similarly the result of Fast is Hunger.

NVS Lab Attendant Mock Test - 8 - Question 6
Which party government announced the formation of a second backward classes commission in 1978?
Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 6

The correct answer is option 3, i.e. Janata Party

Key Points:

  • Janta party announced the formation of a second backward class commission in 1978.
  • Morarji Desai was an Indian independence activist and the Prime Minister of India from 1977 to 1979.
  • He was also the first Prime Minister to head India's first non-Congress Government.
  • He was the first PM to Demonetize India.
  • The commission made to see the formation of second backward classes in 1978 was Mandal Commission.
NVS Lab Attendant Mock Test - 8 - Question 7

Which of the following organizations is set to launch its "One Nation, One Registration platform"?

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 7

The National Medical Commission (NMC) is all set to launch its “one nation, one registration platform” for doctors across India. The NMC will unveil a patch pilot of the National Medical Register (NMR) in the next six months, where doctors will be allotted a unique identification number.

NVS Lab Attendant Mock Test - 8 - Question 8

Which of the following song has won the "Best original song" award at Oscar 2023?

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 8

The correct answer is Naatu Naatu.In News

  • In the 95th Academy Awards ceremony, India's 'Naatu Naatu song' from SS Rajamouli's film RRR made history by becoming the first Indian film to win an Oscar for best original song.

Key Points 

  • The film inspired is from the lives of freedom fighters Komaram Bheem and Alluri Sitarama Raju.
  • Another Indian entry 'The Elephant Whisperers' also won an Oscar in the Best Documentary Short Film category.
  • The 95th Academy Awards were held on 12 March 2023 in Los Angeles.
  • Everything Everywhere All At Once won Best Picture.
  • Michelle Yeoh won Best Actress for Everything Everywhere All at Once.
  • Brendan Fraser won Best Actor for The Whale.
  • Daniel Kwan and Daniel Schienert won Best Director for Everything Everywhere All at Once.
  • All Quiet on the Western Front won Best International Feature Film.

Additional Information

  • Awards won by 'RRR':
    • 'RRR' won the International Film of the Year award at the Dadasaheb Phalke International Film Festival awards, announced on 20 February 2023 in Mumbai.
    • RRR won 2 awards, one for Best Foreign Language Film and another for Best Song (Nattu Nattu) at the Critics Choice Awards 2023 in January 2023.
    • It won Best Original Song for Naatu Naatu at Golden Globes Awards.
    • RRR' won the Best International Film Award at the 50th Saturn Awards. 
    • SS Rajamouli won the top prize - Best Director - at the New York Film Critics Circle for his film RRR.

NVS Lab Attendant Mock Test - 8 - Question 9

Direction: In the following questions, out of the four alternatives, choose the word opposite in meaning to the given word.

Meticulous

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 9

The word Meticulous (Adjective) means : paying careful attention to every detail; fastidious; thorough.
Careless in option (c) is the correct autonomy. 

NVS Lab Attendant Mock Test - 8 - Question 10

निम्न में से कौन-सा शब्द निपात का उदाहरण नहीं है?

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 10

सही उत्तर "मैं" है।

  • दिए गए विकल्पों में, 'मैं' शब्द निपात का उदाहरण नहीं है।
  • 'मैं' शब्द 'उत्तम पुरुष सर्वनाम' है।
  • किसी भी बात पर अधिक भार देने के लिए जिन शब्दों का प्रयोग किया जाता है निपात कहलाता है।
  • जैसे- भी, तो, तक, केवल, ही, मात्र आदि।

Key Points

अन्य विकल्पों का विश्लेषण:

उदाहरण:

  • राधा ने मुझसे बात तक नहीं की।
  • कल से मैं भी आपके साथ स्कूल आऊंगा।
  • राम को आज रात रुकना ही पड़ सकता है।
  • उपरोक्त उदाहरणों में तक, ही, भी शब्द वाक्यों को बल दे रहे हैं।

Important Points

 

  • वे शब्द जिनमे लिंग, कारक, वचन, पुरुष आदि के कारण कोई विकार/ परिवर्तन उत्पन्न नहीं होता है, अव्यय शब्द कहलाते है।
  • जैसे – आज, कब, इधर, किन्तु आदि।
  • अव्यय के पांच भेद हैं

Additional Information

  • ​संज्ञा के स्थान पर प्रयुक्त होने वाले शब्दों कोसर्वनामकहते हैं।
  • जैसे - मैं, वह, वे, उन्हें, अपने तुम, हम आदि।
  • पुरुषवाचक सर्वनाम के प्रकार:
    • हिंदी में पुरुषवाचक सर्वनाम तीन प्रकार के होते है:
    • उत्तम पुरुष सर्वनाम- जिस सर्वनाम का प्रयोग वक्ता/बोलने वाला लिखने वाला खुद के बारे में बताने के लिए करता है।
    • जैसे: मैं, मुझे, मुझको, मेरा, मेरी, हमारी, हम, हमारा, हमें आदि।
    • मध्यम पुरुष सर्वनाम- जिस सर्वनाम का प्रयोग वक्ता सुनने वाले व्यक्ति के लिए करता है।
    • जैसे: तुम, तुमको, तुझे, तू, आप, आपने आदि।
    • अन्य पुरुष सर्वनाम- जिस सर्वनाम का प्रयोग वक्ता किसी तीसरे व्यक्ति के बारे में बताने के लिए करता है, तब इस सर्वनाम का प्रयोग होता है।
    • जैसे: यह, वह, ये, वे, आदि।
NVS Lab Attendant Mock Test - 8 - Question 11
इनमें से कौन सा शब्द-भेद अव्यय कहलाता है?
Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 11

सही उत्तर 'क्रिया-विशेषण' है।

  • 'क्रिया-विशेषण' शब्द-भेद अव्यय कहलाता है।
  • वे शब्द जिनमे लिंग, कारक, वचन, पुरुष आदि के कारण कोई विकार/ परिवर्तन उत्पन्न नहीं होता है, अव्यय शब्द कहलाते है।
  • जैसे – आज, कब, इधर, किन्तु आदि।
  • अव्यय के पांच भेद हैं –क्रिया-विशेषण, सम्बन्धबोधक, समुच्चयबोधक, विस्मयादिबोधक और निपात।​

Key Pointsअन्य विकल्पों का विश्लेषण:

  • संज्ञा - किसी प्राणी, वस्तु, स्थान, गुण या भाव के नाम को संज्ञा कहते है।
  • जैसे -राम, गंगा, पटना, नदी, पर्वत, लड़की आदि।
  • सर्वनाम वे शब्द होते हैं जो संज्ञा के स्थान पर प्रयोग किये जाते हैं
  • जैसे - तू, तुम, वे आदि।
  • विशेषण-जो शब्द संज्ञा या सर्वनाम शब्द की विशेषता बताते है उन्हें विशेषण कहते है।
    • जैसे:- राम काला है।
    • राम :- संज्ञा
    • काला:- विशेषण

Additional Informationअव्यय के पांच भेद हैं

NVS Lab Attendant Mock Test - 8 - Question 12

निम्नलिखित प्रश्न में, चार विकल्प दिए गए हैं जिनमें से एक शब्द दिए गए अनेकार्थी शब्द का एक अर्थ नहीं है। उस शब्द का चयन करें।

घन

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 12

दिए गए विकल्पों में सही उत्तर विकल्प 1 ‘घड़ाहै। अन्य सभी विकल्प इसके अनुचित उत्तर होंगे।

Key Points

  • दिए गए विकल्पों में घन का अनेकार्थी शब्द 'घड़ा' नहीं है।
  • घड़ा के अनेकार्थी शब्द हैं- घट, शरीर, हृदय, कम।
  • घड़ा के पर्यायवाची शब्द हैं- गगरा, घट, कुभ, कलश।

NVS Lab Attendant Mock Test - 8 - Question 13
तुलसीकृत' शब्द के संदर्भ में कौन-सा विकल्प सही है?
Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 13

सही उत्तर है - "यह तत्पुरुष समास है।"Key Points

  • 'तुलसीकृत' शब्द के संदर्भ में "यह तत्पुरुष समास है" l - विकल्प सही है l
  • तुलसीकृत में समास का उपभेद तृतीया तत्पुरूष (करण तत्पुरूष) समास है l
  • करण तत्पुरुष:-
    • जिसके प्रथम पद के साथ करण कारक की विभक्ति (से/द्वारा) लगी हो। उसे करण तत्पुरुष कहते हैं।
  • 'तुलसीकृत' का उचित समास विग्रह 'तुलसी द्वारा रचित' होगा।
  • तत्पुरुष समास -
    • 'तुलसीकृत' शब्द में बीच की विभक्ति 'द्वारा' का लोप होने के कारण यह तत्पुरुष समास का उदाहरण है।
  • जिस समास में प्रथम पद गौण और उत्तर पद की प्रधानता होती है और समास करते वक्त बीच की विभक्ति का लोप हो जाता है।

अन्य विकल्प:-

  • तत्पुरुष और कर्मधारय दोनों का उदाहरण है।, यह कर्मधारय समास है। - यह विकल्प अनुचित है क्योंकि तुलसीकृत शब्द में कर्मधारय समास नहीं है l
  • इसमें पूर्व पद प्रधान है। - यह विकल्प अनुचित है क्योंकि तुलसीकृत शब्द तत्पुरुष समास का उदाहरण है, जिसमें पूर्वपद प्रधान होता नहीं होता l तत्पुरुष समास में उत्तर या द्वितीय पद प्रधान होता है l

Additional Information

  • 'संक्षिप्तिकरण' को समास कहते हैं।
  • कर्मधारय समास - पहला पद विशेषण और दूसरा पद विशेष्य होता है अथवा इसके पूर्वपद और उत्तर पद में उपमान और उपमेय का संबंध होता है।
  • उदाहरण:-
    • नवयुवक = नव है जो युवक
    • नील कमल = नील के समान कमल।
    • सूरजमुख= सूरज के समान मुख। ·
  1. तत्पुरुष समास के उदाहरण:-
  • देशभक्ति = देश के लिए भक्ति
  • घुड़साल = घोड़ों के लिए साल (भवन)
  • सभामंडप = सभा के लिए मंडप
NVS Lab Attendant Mock Test - 8 - Question 14

Directions: In the following question, a sentence is given with a blank. You have to fill the blank with one of the words given as options in order to make the sentence contextually and grammatically correct.

The main Chinese motivation stems _______________ its desire to confine the debate within ASEAN-China framework.

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 14

The correct phrasal verb with verb ‘stem’ is ‘stem from’.

Stem from: to be caused by (something or someone).

Ex: Most of her health problems stem from an accident she had when she was five.

Hence, option A is correct.

NVS Lab Attendant Mock Test - 8 - Question 15
निम्न में से कौन सा शब्द 'सूर्य' का पर्यायवाची नहीं है?
Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 15

मयंक शब्द 'सूर्य' का पर्यायवाची नहीं है। मयंक चन्द्रमा का पर्यायवाची होता है।

Key Points

  • चन्द्रमा : शशि, हिमकर, राकेश, रजनीश, हिमांशु, चाँद, मयंक, विधु, सुधाकर, कलानिधि, निशापति, शशांक
  • सूर्य : अंशुमान, सूरज, रवि, दिनकर, दिवाकर, प्रभाकर, भास्कर।
  • सविता : भानु, दिनेश, मार्तण्ड, अंशुमाली, सूर्य, रवि, सूरज, दिनकर, प्रभाकर, दिवाकर, भास्कर
  • दिनकर : प्रभाकर, दिवाकर, भास्कर, सविता, भानु, दिनेश, मार्तण्ड, अंशुमाली, सूर्य
  • भास्कर : सूरज , फतिंगा , पतंगा पतंग , सूर्य
NVS Lab Attendant Mock Test - 8 - Question 16

One who possesses many talents

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 16

One word substitution is Versatile.

Versatile: able to adapt or be adapted to many different functions or activities.
Nubile: sexually mature; old enough for marriage.
Exceptional: unusually good; outstanding.
Gifted: having exceptional talent or natural ability.
 

NVS Lab Attendant Mock Test - 8 - Question 17
निम्न में से किस वाक्य में शब्दचयन की दृष्टि अशुद्धता है?
Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 17

सही उत्तर है - “भारत एक शक्तिशील देश है”।

  • उपरोक्त विकल्पो मे से "​भारत एक शक्तिशील देश है" वाक्य में शब्दचयन की दृष्टि अशुद्धता है।
  • अन्य विकल्प शुद्ध है। अत: "भारत एक शक्तिशील देश है" सही उत्तर होगा।

Key Points

  • शुद्ध वाक्य होगा:- भारत एक शक्तिशाली देश है।
  • अत: वाक्य में वर्तनी संबंधी अशुद्धता है।

Additional Information

  • यदि वाक्य में किसी तरह की अशुद्धि होती है तो आपके बोले गए वाक्य का अर्थ भी बदल सकता है।
  • अत: वाक्य को बोलते व लिखते समय उसकी शुद्धता, स्पष्टता और सार्थकता का ध्यान रखना बहुत जरूरी है।
NVS Lab Attendant Mock Test - 8 - Question 18

“भगवान श्रीराम के अयोध्या लौटने पर प्रजा ने खुशियाँ मनाई थी।” वाक्य में रेखाँकित शब्द के लिए सही मुहावरा है-

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 18

विकल्प घी के दिए जलाना सही है।

Key Points
  • घी के दिए जलाना
    • अर्थ: खुशियाँ मनाना
    • वाक्य प्रयोग: भगवान श्रीराम के अयोध्या लौटने पर प्रजा ने घी के दिए जलाए थे।

Additional Information

  • घाव पर नमक छिड़कन
    • अर्थ: दुखी को और दुखी करना
    • वाक्य प्रयोग : वह अनुत्तीर्ण होने के कारण पहले दुखी है, तुम जली – कटी सुनाकर उसके घाव पर नमक छिड़क रहे हो।
  • घोड़े बेचकर सोना
    • अर्थ : निश्चित होना
    • वाक्य प्रयोग: दिन-भर थकने के बाद मजदूर रात को घोड़े बेचकर सोते हैं।
  • चाँद पर थूकना
    • अर्थ:निर्दोष पर दोष लगाना
    • वाक्य प्रयोग: अरे, उस संत-महात्मा पर व्यभिचार का आरोप लगाना चाँद पर थूकना है ।
Important Points
  • अन्य उदाहरण
  • झोली भरना
    • अर्थ – भरपूर प्राप्त होना
  • टाँग अड़ाना
    • अर्थ – अड़चन डालना
  • टका सा जबाब देना
    • अर्थ – साफ़ इनकार करना
  • टस से मस न होना
    • अर्थ – कुछ भी प्रभाव न पड़ना
  • टोपी उछालना
    • अर्थ – निरादर करना
NVS Lab Attendant Mock Test - 8 - Question 19

A cooler of 1500 W, 200 volt and a fan of 500 W, 200 volt are to be used from a household supply. The rating of fuse to be used is

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 19

Total power used, P - P1 + P2 = 1500 + 500 = 2000 W.
Current drawn from the supply,

NVS Lab Attendant Mock Test - 8 - Question 20

The reaction between lead nitrate and potassium iodide is an example of _______ .

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 20

Lead nitrate reacts with Potassium iodide to form Lead iodide and Potassium nitrate.

Pb(NO3)2 + 2KI → PbI2 + 2KNO3

NVS Lab Attendant Mock Test - 8 - Question 21

Which of the following is the most stable ecosystem?

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 21

Key Points

Concept:

Ecosystem: 

All organisms such as plants, animals, microorganisms and human beings as well as the physical surroundings interact with each other and maintain a balance in nature. All the interacting organisms in an area together with the non-living constituents of the environment form an ecosystem.

  • Biotic Components: It includes producers, consumers and decomposers. All living things have a direct or indirect influence on other organisms in an environment. Ex- Plants, Animals, Microorganism etc.
  • Abiotic components: All the in-organic components of the ecosystem, non-living physical and chemical composition of nature are abiotic components. Ex- stones, water, Humus (organic waste), air etc

Additional Information

Explanation:

  • The structure of an ecosystem refers to its biotic and abiotic factors and the function of an ecosystem includes energy flow and nutrient cycles
  • An ecosystem whose structure and function remains unaltered over a long period of time is considered to be a stable ecosystem
  • Oceans are the most stable ecosystem as they are large, deep, and continuous because of which any change in the structure and function is difficult or can be easily resisted
  • Coral reefs are a diverse form of the marine ecosystem, which in total may account for a quarter of all ocean species.
  • The ratio of fish compared to elasmobranchs such as sharks, skates, and rays – has remained stable for periods of tens of millions of years, despite extreme environmental changes caused by climate shifts of the past.
NVS Lab Attendant Mock Test - 8 - Question 22
Which among the following is conventional source of energy?
Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 22

Concept:

Conventional energy:

  • Energy sources that have been in use for a long time are referred to as conventional energy sources.
  • The conventional energy sources are coal, petroleum, natural gas, hydel energy, wind energy, and nuclear energy.

Explanation:

Coal:

  • It is as hard as stone and is black in colour.
  • Coal contains mainly carbon, the slow process of conversion of dead vegetation into coal is called carbonisation.
  • It was formed from the remains of vegetation, coal is also called a fossil fuel.
  • The growing demand for energy was largely met by the fossil fuels coal and petroleum.
  • Fossil fuels are non-renewable or conventional sources of energy.

Thus, coal is a conventional source of energy.

Additional Information

Nuclear energy:

  • Nuclear energy is one of the least harmful conventional energy sources to the environment.
  • Uranium, which is less expensive than coal, is used as a fuel in nuclear power plants.

Non-conventional energy:

  • Non-conventional energy is defined as energy generated by wind, solar, small hydro, tides, geothermal heat, and biomass.

Solar energy:

  • Sunlight generates solar energy.
  • The photovoltaic cells are exposed to sunlight based on the type of electricity required.
  • The energy is used for cooking and water distillation.

Wind energy:

  • Wind energy is created by harnessing the power of the wind and is primarily used to power irrigation water pumps.
  • In terms of wind power generation, India is the second-largest country.
NVS Lab Attendant Mock Test - 8 - Question 23

The velocity of ultrasonic sound in water is 1400 m. The depth of the ocean as detected by SONAR, if the time taken to receive the reflected wave is 15s, is

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 23

NVS Lab Attendant Mock Test - 8 - Question 24
What does a pH value greater than 7 signify in a solution?
Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 24
A pH value greater than 7 signifies a basic solution. This indicates that the concentration of hydroxide ions (OH-) in the solution is higher than the concentration of hydrogen ions (H+), making the solution basic in nature. Basic solutions have a pH greater than 7 and can range from slightly basic to strongly basic.
NVS Lab Attendant Mock Test - 8 - Question 25
The photochemical smog is
Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 25

Secondary pollutants: Primary pollutants when reacting with each other or from basic components of air, forms a new pollutant called secondary pollutants.

Different types of secondary pollutants include:

1. Ozone (O3)

2. Sulfuric acid and nitric acid (components of acid rain)

3. Particulate matter

4. Nitrogen dioxide (NO2)

5. Peroxyacyl nitrates (PAN)

6. Photochemical smog

Important Point:

Primary pollutants:  Pollutants that are emitted directly from either natural events or from human activities are called primary pollutants.

The natural events are dust storms; volcano etc and human activities can be emission from vehicles, industrial wastes.

About 90% of global air pollution is constituted by five primary pollutants. These are

1. Carbon oxides (CO and CO2)

2. Nitrogen oxides

3. Sulfur oxides

4. Hydrocarbons

5. Particulate matter

6. Volatile Organic Compound

7. Suspended Particulate Matter (SPM)

8. Radioactive compound

9. Halogen compound

NVS Lab Attendant Mock Test - 8 - Question 26

Which is the wrong statement out of the following ?

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 26

The image is diminished then it will form at the back of the mirror. Thus, the image cannot be obtained on a screen and is virtual.

NVS Lab Attendant Mock Test - 8 - Question 27

21H and 31H are _______ .​

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 27

Atoms of the same element having the same atomic numbers but different mass numbers are termed as isotopes.

NVS Lab Attendant Mock Test - 8 - Question 28

Action and reaction forces are always:

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 28
  • It is Newton's third law of motion which states that every action has an equal and opposite reaction.
  • So, every action and reaction forces are equal and in opposite direction.
NVS Lab Attendant Mock Test - 8 - Question 29

How does the state of matter change during the fusion process?

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 29

If we will take the example of ice, a solid so when melting or fusion takes place ice converts to water a liquid.

NVS Lab Attendant Mock Test - 8 - Question 30

Element X forms a chloride with the formula XCl2, which is a solid with high melting point. X would most likely be:

Detailed Solution for NVS Lab Attendant Mock Test - 8 - Question 30

X = Mg

Because Mg has valency 2 and valency in a group remains the same.

When Mg combines with chlorine it forms MgCl2.

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