Bihar PGT Chemistry Mock Test - 5 - Bihar PGT/TGT/PRT MCQ

The correct form of the word would be 'likes'. This is because the subject of the sentence is singular. 

'Chivalry' is the quality in a man of being highly courteous in his presentation. None of the other options means the same as that of the given phrase.
A preacher is a religious teacher, a savior is a person who protects people in times of need and a knight is a great warrior.
Example-Chivalrous men are difficult to be found in today's world.

वर्ण - हिन्दी भाषा में प्रयुक्त सबसे छोटी इकाई वर्ण कहलाती है।

य वर्ण का उच्चारण स्थान – तालु है।

तालु से उच्चारित वर्ण - इ,च,छ,ज,झ, ञ , य,श

अत: विकल्प (A) सही है I

पद्मावत में सात चौपाई के बाद एक दोहा देने की परंपरा है। अतः उपर्युक्त विकल्पों में से विकल्प दो पद्मावत सही है तथा अन्य विकल्प असंगत है। चित्रावली में भी सात चोपाई के बाद एक दोहा देने की परंपरा है। मृगावती, सत्यवती कथा ,चंदायन, आलम कृत माधवानल में भी पांच चौपाई के बाद एक दोहा देने की परंपरा है। पद्मावत मलिक मोहम्मद जायसी की रचना है।। इनका प्रिय अलंकार उत्प्रेक्षा अलंकार है। पद्मावत का रचना वर्ष 1540 ईस्वी है। पद्मावत की रचना अवधी भाषा में की गई है। यह चौपाई दोहा छंद में है। चीपाई की प्रत्येक सात अर्धालियों के बाद दोहा आता है और इस प्रकार आए हुए दोहों की संख्या 653 है। पद्मावत में उपसंहार समेत 58 अध्याय हैं। पद्मावत का "नागमती वियोग खंड" हिंदी साहित्य की अनुपम निधि है।

हिंदी साहित्य का दूसरा युग 'द्विवेदी युग' (1900–1920) के नाम से जाना जाता है।
आचार्य महावीर प्रसाद द्विवेदी (1864–1938) हिन्दी के महान साहित्यकार, पत्रकार एवं युगप्रवर्तक थे।

रचनाएँ - कान्यकुब्ज-अबला-विलाप (1907 ई.), काव्य मंजूषा (1903 ई.), सुमन (1923 ई.), द्विवेदी काव्य-माला (1940 ई.), कविता कलाप (1909 ई.)

अत: विकल्प (A) सही है I

'राहखर्च' शब्द का विग्रह है 'राह के लिए खर्च'। यहाँ उत्तरपद प्रधान है तथा समास के उपरांत विभक्ति का लोप होता है अर्थात यहाँ तत्पुरुष समास है। 

अघोष और घोष वर्ण :-

घोष:- जिन वर्णों के उच्चारण में, स्वर तंत्रियों में ध्वनि का कम्पन हो, इनकी संख्या 31 होती है।

अघोष वर्ण:- स्वर तंत्रियो में ध्वनि का कम्पन न हो, इनकी संख्या 13 होती है।

अत: विकल्प (D) सही है I

श्रीहर्ष की रचना नैषधीयचरितम् है। नैषधीयचरितम्— श्रीहर्ष की सबसे प्रसिद्ध रचना है। इसमें कुल 22 सर्ग और 2830 श्लोक हैं। इसका कथानक महाभारत के नलोपाख्यान पर आधारित है। इसमें नल व दमयंती के प्रणय- परिणय का वर्णन है। इसमें श्रृंगार रस मुख्य रस है।

अत: विकल्प (B) सही है I

समाधान : इसका सही उत्तर विकल्प घर - लोक है। अन्य विकल्प इसके अनुचित हैं। 

भवन का अर्थ - घर

भुवन का अर्थ - लोक

अतः विकल्प (B) सही है।

The logic follows here is:

In a figure:

Middle number = (Top number × bottom number) - (left number × right number) 

In fig 1:

Middle number = (9 × 10) - (7 × 8)

= 90 - 56

= 34

In fig 2:

Middle number = (12 × 8) - (8 × 7)

= 96 - 56

= 40

Similarly,

In fig 3:

Middle number = (11 × 7) - (4 × 9) 

? = 77 - 36

? = 41

Hence, the correct answer is "41".

Key Points

Monsoon in India:

• The southwest monsoon sets in over the Kerala coast by 1st June and moves swiftly to reach Mumbai and Kolkata between 10th and 13th June.
• By mid-July, southwest monsoon engulfs the entire subcontinent
• During April and May when the sun shines vertically over the Tropic of Cancer, the large landmass in the north of the Indian ocean gets intensely heated.
• This causes the formation of intense low pressure in the northwestern part of the subcontinent.
• Since the pressure in the Indian Ocean in the south of the landmass is high as the water gets heated slowly, the low-pressure cell attracts the southeast trades across the Equator.
• These conditions help in the northward shift in the position of the ITCZ.
• The southwest monsoon may thus, be seen as a continuation of the southeast trades deflected towards the Indian subcontinent after crossing the Equator.
• These winds cross the Equator between 40°E and 60°E longitudes.
• The shift in the position of the ITCZ is also related to the phenomenon of the withdrawal of the westerly jet stream from its position over the north Indian plain, south of the Himalayas.
• The easterly jet stream sets in along 15°N latitude only after the western jet stream has withdrawn itself from the region.
• This easterly jet stream is held responsible for the burst of the monsoon in India.

Hence, the Mansoon arrives in India approximately in early June.

Key Points

Thus, the correct match is A (III), B (II), C (IV), D (I)

The correct answer is Bodh Gaya.

Key Points

• Buddha attained enlightenment at Bodh Gaya in Bihar.
• He attained enlightenment under a peepal tree at Bodh Gaya where he meditated for days.
• After attaining enlightenment, he came to be known as Buddha or the wise one.
• Buddha was a Kshatriya and belonged to Sakya gana.

 Thus, we can say that Buddha attained enlightenment at Bodh Gaya.

Additional Information

• He taught for the first time at Sarnath and passed away at Kusinara.

In the question,

11² = 121

13² = 169

17² = 289

19² = 361

23² = 529

24² = 576

Thus we can say except for (24)² , all the given number is a square of a prime number.

Hence, Option (2) is correct.

Hence, the applicant meets all the criteria.

• The currency of Thailand is Thai Baht.
• The currency of China is Yuan.
• The currency of Malaysia is Ringgit.
• The currency of India is Rupee.
•  1 Thai Bhat = 2.28 Rupees (as of feb 2018)

Given

Ratio of principal and amount is 4 : 5 at a certain time. If it becomes 5 : 7 after 3 years

Concept used

Rate = (interest × 100)/(Principal × time)

Calculation

Principal : Amount = 4 : 5

Principal be equal 

Multiply the first ratio with 25 and second with 20

⇒ (4 : 5) × 25 

⇒ (5 : 7) × 20

Principal : Amount = 100 : 125

Principal : Amount = 100 : 140

Difference in amount = 140 - 125

Difference in Amount = 15

3 year = 15

1 year = 5

Rate = (interest × 100) / Principal × time

Rate = 

Rate = 5%

∴ The required simple rate of interest is 5%.

The Correct Answer is Option 4 i.e Propane.

• Methane:
  • Methane is a colorless odorless gas. 
  • It is also known as marsh gas or methyl hydride. 
  • The molecular formula is CH₄.
• Pentane:
  • Pentane is found in alcoholic beverages. 
  • Pentane is present in hop oil. 
  • Pentane is any or one of the organic compounds with the formula C₅H₁₂. 
  • Its properties are very similar to those of butane and hexane.
• Propane:
  • Propane, sometimes known as liquefied petroleum gas, or LPG.
  • Propane is a three-carbon alkane gas (C₃H₈).
  • Propane is produced as a by-product of natural gas processing and crude oil refining. 
• Butane:
  • Butane is a colorless gas with a faint petroleum-like odor.
  • It is shipped as a liquefied gas under its vapor pressure. 
  • Butane is a straight-chain alkane composed of 4 carbon atoms. 
  • C₄H₁₀ is the molecular formula of butane.

Concept of Reducing Agent:
A reducing agent is a substance that loses or "donates" an electron to another substance in a redox chemical reaction. Therefore, a good reducing agent is the one that gets oxidized easily, or in other words, the one that can easily lose electrons.

Characteristics of a Good Reducing Agent:

• Electron Loss: A better reducing agent is the one that loses more electrons. This is because by losing electrons, the reducing agent gets oxidized and in turn reduces the other substance. This is the basic principle of a redox reaction.
• Reactivity: The reactivity of the metal also determines its capacity as a reducing agent. Metals that are high in the reactivity series are good reducing agents. This is because they can easily lose electrons and get oxidized.
• Stability: Metals that are less stable are better reducing agents because they can easily lose electrons to attain a stable state.

Hence, Option A is the correct answer - a better reducing agent is the one that loses more electrons.

The correct answer is Option C.
Unit of rate of reaction =sec⁻¹

∴ Units of K1 = sec⁻¹

∴ Unit of K₂ = M⁻¹sec⁻¹

a) BaCl₂ + H₂SO₄ → BaSO₄ + 2HCl is not a redox reaction, as there is no change in the oxidation state of any element.
It is an example of double displacement reactions.

Y forms a tertiary carbocation which rearranges to a further more stable benzylic carbocation.

PCl₅ dissociation a closed container

The solubility of Agbr in presence of 10^-7 molar AgNo³ is 3 x 10^-7 M. therefore [Br] 3 x 10^-4 M³, [Ag⁺] = 4 x 10^-4 m³ and [No^3-]= 10^-4 m³

Therefore 

According to the given sets of options, only option d is correct. The reason or exceptional configuration of Cr is stability of half-filled d subshell. If the Aufbau principle was not followed then the configuration of Cr be [Ar] 3d6. So, if the Aufbau principle won’t be followed, then the options won’t have an electron in their 4s subshell.
 

Radial nodes = (n - l - 1)
Angular nodes = l, total nodes = (n - 1), nodal plane = l

The correct answer is option A
Nucleotides are joined together by phosphodiester linkage between 5′ and 3′ carbon atoms of pentose sugar.
 

NH₂OH and NH₂—NH₂ may be considered as NH₃ derivatives in which H is replaced but — OH and NH₂ respectively. Due to their electron withdrawing nature, these groups decreases electron density over nitrogen making them less basic. The effect of — OH group is stronger than —NH₂

One equivalent of KMnO₄ = One equivalent of K₂Cr₂O₇ = One equivalent of Fe²⁺ ion or 1/5 moles of KMnO₄ = 1/6 moles of K₂Cr₂O₇ = One mole of Fe²⁺ ion.
Hence, one mole of KMnO₄ reacts with 5 moles of Fe²⁺ ion and one mole of K₂Cr₂O₇ reacts with 6 moles of Fe²⁺ ion.