Question # 1

The bond angle H - O - H in ice is closest to

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120° , 28°

60°

90°

109°

When electricity is passed through molten AI₂O₃ + Na₃AIF₆ and 13.5 gms AI are deposited,the number of faraday must be

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0.5

1.0

1.5

2.0

Which of the following reagent cannot be used for preparing alkyl chloride from alcohol?

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HCI + anhyd. ZnCI₂

NaCI

PCI₅

SOCI₂

Which is the most amphoteric?

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Na₂O

MgO

AI₂O₃

CaO

Rusting of iron is catalysed by

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Fe

O₂

Zn

H⁺

ΔH_{Neutralisation} is always

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Positive

Negative

Zero

Positive or negative

Ozone is not

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An allotrope

A powerful oxidizing agent

Paramagnetic

A bent molecule

The number of unpaired electrons in the P-subshell of oxygen atom

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1

2

3

4

Hybridization explain the------- of orbitals

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Type of Bonding

Shapes

Shape and Type of bonding

None of above

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