Question # 1

Wholer prepared ures from

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Ammonia

NH₄CNO

NH₃

uric acid

Toluene can be oxidized to benzonic acid by

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KMnO4 (alk)

K₂Cr₂O₇(acidic)

Both

None

Octane number is zero for

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n-Heptane

Isooctane

n-Hexane

Isoheptane

The molal elevation constant is the ratio of the elevation in boiling point to

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Molarity

Molality

Mole fraction of solute

Mole fraction of solvent

Rusting of iron is catalysed by

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Fe

O₂

Zn

H⁺

Which of the following compounds has the lowest anion to cation size ratio?

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LiF

NaF

CsI

CsF

Causticisation process is used for the preparation of

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Caustic soda

Caustic potash

Baryata solution

Slaked lime

Which is true for an element R present in group 13 of the periodic table?

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It is a gas at room temperature

It has oxidation state of +4

It forms R₂O₃

It forms RX₂

The rate of reaction between A and B increases by a factor of 100 when the concentration with respect to A is increased 10 folds the order of reaction w.r.t A is

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10

1

4

2

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