Question # 1

Fertilizer are made by

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Nature only

Artificial methods only

Both artificial and natural methods

None of the above

The total number of protons in 10 g of calcium carbonate is (N_o = 6.023 x 10²³)

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1.5057 x 10²⁴

2.0478 x 10²⁴

3.0115 x 10²⁴

4.0956 x 10²⁴

Covalent compounds are soluble in

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Polar solvents

Non-polar solvents

Concentrated acids

All solvents

The principle constituent of pyrex glass is

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Zn

B

Pb

CI

Which of the following statements is most appropriate about effective nuclear charge? It depends upon

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The shielding constant

The atomic number

The charge on the nucleus

Both the nuclear charge and the shielding constant

Sulphure dioxide affects

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Cell wall

Plasmodesmata

All membrane systems

Nucleus

Which of the following does not reflect the periodicity of elements?

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Bonding behaviour

Electronegativity

Ionisation potential

Neutron/proton ratio.

The alkali metal which is liquid at 15°C is

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K

Cs

Na

None

The number of oxygen atoms in 4.4 g of CO₂ is approximately

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1.2 x 10²³

6 x 10²²

6 x 10²³

12 x 10²³

Maximum number of active hydrogens are present in

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Acetic-acid

Glycerol

Methane

Methanol

Which is the most volatile compound?

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HI

HCI

HBr

HF

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NAT I Engineering Chemistry MCQs With Answers

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