EMRS PGT Chemistry Mock Test - 8 - EMRS MCQ

The correct answer is NaHCO3.

Key Points

• Chemically known as sodium bicarbonate, the formula of baking soda is NaHCO3.
• Baking soda is a white and crystalline salt that is made up of bicarbonate anion and sodium cation.

Additional Information

The correct answer is ​1965.

Key Points

• Green Revolution:
  • ​Father of the Green Revolution in worldwide- Norman Borlaug.
  • Father of the Green Revolution in India- M.S. Swaminathan.
  • This revolution led to an increase in food grain production.
  • In the year 1965, the government of India launched the Green Revolution.
  • India adopted a new strategy in agriculture, which resulted in the Green Revolution especially in the production of wheat and rice.
  • The movement of the green revolution was a great success and changed the country's status from a food-deficient economy to one of the world's leading agricultural nations.

The correct answer is Department for Promotion of Industry and Internal Trade.

Key Points

• Departments under Finance Ministry:
  • ​Department of Expenditure
  • ​Department of Revenue
  • ​Department of Financial Services
  • ​Department of Investment and Public Asset Management
  • ​Department of Economic Affairs
• Department for Promotion of Industry and Internal Trade comes under the Ministry of Commerce and Industry.

Additional Information

•  Departments under Defence Ministry
  • ​Department of Defence (DOD)
  • Department of Defence Production (DDP)
  • Department of Ex-Servicemen Welfare (DESW)
  • Defence Research and Development Organisation (DRDO)
  • Department of Military Affairs (DMA)
• Departments under the Ministry of Home Affairs
  • ​Department Of Border Management
  • Department Of Internal Security
  • Department Of Jammu, Kashmir And Ladakh Affairs
  • Department Of Home
  • Department Of Official Language
  • Department Of States

The correct answer is Climate.

Key Points

• The average pattern of wind speed, temperature, rainfall, etc, in place over a long period of time, is called climate.
• Climate is the average weather in a place over many years.
• The weather can change in just a few hours whereas climate takes millions of years to change.
• Planet earth has witnessed many variations in climate since the beginning.
• There are several causes of climate change.
• The most significant anthropogenic effect on the climate is the increasing trend in the concentration of greenhouse gases in the atmosphere.

1) GRASS – FEARLESS (Cannot be formed because G is missing)

2) RESEAL – FEARLESS (Can be formed)

3) LESSER – FEARLESS (Can be formed)

4) ERASE – FEARLESS (Can be formed)

Hence, the correct answer is “GRASS”.

Option D is correct

The logic follows here is:

Now,

Karan is 17 years old, has a weight of 47 kgs, and a height of 161 cms.

It is clearly mentioned in the criteria of Physical in Sub-inspector and Army recruitment about the weight and height of the candidate. Karan has a weight of 47 kgs and a height of 161 cms which is less than the criteria set for both the recruitment. Therefore, Karan neither qualifies for Physical in Sub-inspector and Army recruitment.

Hence, the correct answer is "Neither Sub-inspector nor Army recruitment".

1. Choose Open from the File menu. The Open a File dialog box lists files and folders in your current folder. ...
2. Select the name of the document you want to open, or type the document name in the Enter file name field.
3. Press Return or click OK. Note -

The communication ability of a teacher helps her to establish a rapport with the students. A teacher who is a good communicator can understand the dilemma of students, and can effectively solve their problems.

Ni²⁺ and Ti³⁺ ions are coloured in aqueous solution because they contain unpaired electrons.

Born Haber cycle involves

The correct answer is option  D.
Milk is an emulsion with fat particles (globules) dispersed in an aqueous (watery) environment. The fat globules do not coalesce and form a separate layer (oil off or churn) because they are protected by a membrane layer which keeps the fat particles separate from the water phase.

Actinoids are from thorium (Z = 90)to Lawrencium (Z = 103) in the Periodic table So, rutherfordium (Z = 104) is not an actinoid.

Among alkali metals, melting point decreases as the strength of metallic bonding decreases with increasing size of the atom. Thus, Cs has the lowest melting point (28.5°C) and will melt at 30°C.

BeO is amphoteric due to its diogional similarly with Al

B is an alcohol formed by the attack of Grignard's reagent on acetone. Hence, alcohol must have the skeleton


Also, R is C₇H₁₁ with two degree of unsaturation it must be cyclohexenyl methyl not cyclohexyl methyl.

In Calgon’s method sodium hexametaphosphate is used to remove hardness of water

The enthalpies of fusion for all reactions are always positive because melting of a solid is an endothermic process in which heat is supplied to the reaction Hence the sum of enthalpies of the product is greater than the sum of enthalpies of the reactant.

The correct answer is option C

Ce exist in the oxidation state other than +3 .

(a) B - Boron has +1 and +3 oxidation state.

(b) Al - Aluminium has +1,+2 and +3 oxidation state.

(c) Ce - Cerium has +3 and +4 oxidation state.

(d) Ga - Gallium has +1 and +3 oxidation state.

Cerium (Ce) have [Xe] 4f²6s² electronic configuration.

In simpler words, after a certain period of time , Hydrogen is completely adsorbed on tungsten metal such that its surface becomes completely concentrated with Hydrogen thus the reaction becomes independent of concentration. a rxn independent of concentration is 0 order.

The correct option is 2.
The sentence talks about a rich man killing himself and his own children. From the phrase, ‘his own children’, we can derive that the ‘him’ in the sentence refers to the rich man. The phrase is wrong as it should be ‘himself’ instead of ‘him’.

सही उत्तर "शाबाश" है।

• दिए गए विकल्पों में, 'शाबाश' शब्द 'विस्मयादिबोधक' अव्यय है।
• दिए गए जिन शब्दों से शोक, विस्मय, घृणा, आश्चर्य आदि भाव व्यक्त हों, उन्हें विस्मयादि बोधक अव्यय कहा जाता है।
• जैसे - (शाबाश!) तुमने बहुत अच्छा कार्य किया।
• इस वाक्य में आश्चर्य के भाव प्रकट हों रहा है और साथ ही इस वाक्य में विस्मयादिबोधक (!) चिह्न का प्रयोग हुआ है इसलिए यहां विस्मयसूचक अव्यय है।

Key Points

अन्य विकल्पों का विश्लेषण:

Additional Information

• 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 –

सही उत्तर "यहाँ" है।

• दिए गए विकल्पों में, 'यहाँ' शब्द 'समुच्चयबोधक अव्यय' नहीं है।
• 'यहाँ' शब्द 'क्रिया-विशेषण अव्यय' है।
• वे शब्द दो या दो से अधिक शब्दों या वाक्यों को जोड़ने का काम करते हैं, वे समुच्चयबोधक शब्द कहलाते हैं।
• जैसे: और, व, एवं, तथा, या, अथवा, किन्तु, परन्तु, कि, क्योंकि, जो कि, हालाँकि, लेकिन, अत:, इसलिए आदि।

Key Pointsअन्य उदाहरण:

Additional Information

• 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 –

सही उत्तर ​बलदायक या सीमाबोधक निपात है।

Key Pointsवह आज तक परीक्षा में सफल नहीं हुआ।- वाक्य के रेखांकित शब्द में बलदायक या सीमाबोधक निपात है।

अन्य विकल्प-

• स्वीकार्य निपात- हाँ, जी, जी हाँ।
• निषेधात्मक निपात- मत
• विस्मयादिबोधक निपात- क्या, काश, काश कि

निपात- किसी भी बात पर अतिरिक्त भार देने के लिए जिन शब्दों का प्रयोग किया जाता है, उसे निपात कहते है। जैसे- तक, मत, क्या, हाँ, भी, केवल, जी, नहीं, न, काश। उदाहरण- कल मै भी आपके साथ चलूँगा।Additional Information

• किसी भी बात पर अतिरिक्त भार देने के लिए जिन शब्दों का प्रयोग किया जाता है उसे निपात कहते है।
• जो अव्यय किसी शब्द के बाद लगकर उसके अर्थ को बल प्रदान करते हैं, वे निपात कहलाते हैं।
• निपात को अवधारक भी कहते हैं।
• निपात किसी बात पर जोर देने के लिए प्रयोग किये जाते हैं।

निपात के उदाहरण

• हमने ही यह कार्य पूरा किया है ।
• कल मेरा मित्र भी आएगा।

Additional Information

• बात अपने तक ही रखना।
• ही निपात है।
• तुम भी कल चले आओ।
• भी निपात है।
• शिक्षा केवल साधन है
• केवल निपात है।