Question # 1

The halide which is not hydrolysed is

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SiCI₄

SiF₄

CCI₄

PbCI₄

The percentage of nitrogen in urea is

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46

60

70

80

Which of the following is an example of body centred cube?

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Magnesium

Zinc

Copper

Sodium

The ratio of the ionization energy of H and Be³⁺ is

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1 : 1

1 : 3

1 : 9

1 : 16

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

The number of electrons in the M shell of the element with number 24 is

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24

12

13

8

Isopropyl alcohol on oxidation forms

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Acetone

Ether

Ethylene

Acetaldehyde

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

Octane number can be changed by

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Isomerisation

Alkylation

Cyclisation

All of these

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