Question # 1

Minamata disease is due to pollution of

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Organic waste

Oil spill in water

Industrial waste containing mercury into fishing water

Arsenic into the atmosphere

The rate of a reaction that does not involves gases, does not depend upon

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Pressure

Temperature

Concentration

Catalyst

Mild oxidation of glycerol with H₂O₂/FeSO_{4 gives}

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Glyceraldehyde

Dihydroxy acetone

Glycerose

None

Which of the following statements is correct with respect to the property of elements with increase in atomic number in the carbon family (group 14)?

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Their metallic character decreases

The stability of +2 oxidation state increases

Their ionization energy increases

Their atomic size decreases

Natural fertilizer provides potassium in the form of K₂O (potash)

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1.5 kg

3 kg

4.5 kg

6.5 kg

In crystal structure of sodium chloride, the arrangement of CI^-ions is

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Fcc

Both Fcc and bcc

Bcc

None of these

A clathrate may be defined as a

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Cage compound

Liquid crystal

Mixture

Solid solution

The vapour density of a gas is 11.2. The volume occupied by 11.2 g of this gas at N.T.P. is

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22.4 litres

11.2 litres

1 litre

2.24 litres

One mole of 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 litres of a gas at S.T.P.

Potassium crystallizes with a

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Orthogonal lattice

Cubic lattice

Triclinic

Ortho rhombic lattice

Which of the following alcohols cannot be produced by treatment of aldehydes or ketones with NaBh₄or LiAH₄?

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1-Propanol

2-Propanol

2-Methyl2-Proponal

Ethanol.

The formula to calcium cyanamide is

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Ca(CN)₂

CaC_2N

CaNCN

CaCHNH₂

Cyclone collector is used for minimizing

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Radioactive pollution

Air pollution

Noise pollution

Water pollution

If one litre of air is passed repeatedly over heated copper and magnesium till no further reduction in volume takes place, the volume finally obtained would be approximately

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800mL

200mL

10mL

Zero

Carbon monoxide is pollutant as it

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Inactivates nerves

Inhibits glycolysis

Combines with oxygen

Combines with hemoglobin

Crystal can be classified in to -------------- basic crystal habits

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7

3

14

3

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NAT II Physical Science Chemistry MCQs With Answers

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