Question # 1

The number of atoms in 0.0004 g of magnesium is close to

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24

2 x 10²⁰

10²⁰

6.02 x 10²³

Toluene can be oxidized to benzonic acid by

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KMnO4 (alk)

K₂Cr₂O₇(acidic)

Both

None

On heating acetaldehyde with ammonical silver nitrate solution we get

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CH₃OH

Silver acetate

HCHO

Silver mirror

1 mole of CH₄ contains

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6.02 x 10²³ atoms of H

4 g-atom of hydrogen

1.81 x 1023 molecules of CH₄

3.0 g of carbon

Heating a mixture of sodium benzoate and soda lime gives

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Methane

Benzene

Sodium benzene

Calcium benzoate

In a crystal a ≠ b ≠ c, a = γ = 90° and β ≠ 90°, it is

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Monoclinic

Rhombic

Trigonal

Tetragonal

Mark the smallest atom

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F

CI

Br

I

Octane number can be changed by

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Isomerisation

Alkylation

Cyclisation

All of these

The rate of a reaction that does not involve gases does not depend upon

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Pressure

Temperature

Concentration

Catalyst

The spectrum of helium is expected to be similar to that of

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H

Li⁺

Na

He⁺

By using the fluted filter paper rate of filtration is

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Increased

Decreased

Filtration is constant

Having no effect

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