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NAT I Medical Chemistry MCQs With Answers

Question # 1

Which of the following is acidic?

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SO₃

N₂O

BeO

HgO

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Question # 2

Which of the following value of ΔHf° represent that the product is least stable?

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-94.0 kcal mol^-1

-231.6 kcal mol^-1

+21.4 kcal mol^-1

+64.8 kcal mol^-1

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Question # 3

Inert pair effect plays an important role in case of

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Question # 4

According to MO Theory the species O⁺₂ possesses

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Bond order of 2.5

Three unpaired electrons

Diamagnetic character

Stability lower then O₂

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Question # 5

Which of the following alkali metal hydroxides is the strongest base?

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LiOH

NaOH

KOH

CaOH

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Question # 6

Acetic anhydride is obtained form acetyl chloride by the reaction of

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P₂O₅

H₂SO₄

CH₃COONa

CH₃COCH₃

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Question # 7

One mole of a gas refers to

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The number of molecules in one litre of gas

The number of molecules in one gram of gas

The number of molecules contained in 12 grams of ¹²C isotope

The number of molecules in 22.4 liters of a gas at S.T.P.

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Question # 8

Which of the following geometry is associated with the compound in which the central atom assumes sp³ d hybridization?

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Planar

Pyramidal

Angular

Trigonal bipyramidal

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Question # 9

Which of the following is directly related to Qualitative analysis?

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Identification

Separation

Measurement

Calculation

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