Q:

Select the synonym of

accolade

A) bungle	B) performance
C) fiasco	D) distinction

Answer & Explanation Answer: D) distinction

Explanation:

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Q:

Which one of the following statements is not correct?

A) Fischer projection represents the molecule in an eclipsed conformation	B) Newman projection can be represented in eclipsed, staggered and skew conformations
C) Fischer projection of the molecule is its most stable conformation	D) In Sawhorse projections, the lines are inclined at an angle of 120 deg to each other.

Answer & Explanation Answer: C) Fischer projection of the molecule is its most stable conformation

Explanation:

Fischer projections were originally proposed for the depiction of carbohydrates and used by chemists, particularly in organic chemistry and biochemistry.A Fischer projection always uses an eclipsed conformation. A Newman diagram can represent either an eclipsed conformation or a staggered conformation or a skew conformation.

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Q:

What is the IUPAC name for the following compound?

$H_{3} C - C \equiv C - H$

A) Acetylene	B) Methyl acetylene
C) Butanol	D) Decanoic Acid

Answer & Explanation Answer: B) Methyl acetylene

Explanation:

The IUPAC name of the compound is Methyl Acetylene or Propyne.

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Q:

Improve the bracketed part of the sentence.

Usually the climate in the Northern parts of India is cooler (from) the Southern parts.

A) as	B) to
C) than	D) no improvement

Answer & Explanation Answer: C) than

Explanation:

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Q:

Select the antonym of

to contend

A) to comply	B) to oppugn
C) to grapple	D) to vie

Answer & Explanation Answer: A) to comply

Explanation:

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Q:

Select the antonym of

appalling

A) reassuring	B) ghastly
C) dire	D) mean

Answer & Explanation Answer: A) reassuring

Explanation:

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Q:

Consider the following chemical reaction :

${aFe}_{2} O_{3} (s) + bCO (g) + cFe (s) + {dCO}_{2}$

In the balanced chemical equation of the above, which of the following will be the values of the coefficients a, b, c and d respectively?

A) 3, 2, 3, 1	B) 1, 3, 2, 3
C) 2, 3, 3, 1	D) 3, 3, 2, 1

Answer & Explanation Answer: B) 1, 3, 2, 3

Explanation:

Fe2O3 + 3CO = 2Fe + 3CO2

Hematite + Carbon Monoxide = Iron + Carbon Dioxide

In this reaction, the iron oxide is reduced to iron, and the carbon is oxidised to carbon dioxide.

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Q:

Choose the antonym of

stun

A) petrify	B) calm
C) flabbergast	D) stupefy

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