Question # 1

Which is a Lewis base?

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H⁺

NH₄

BF₃

AlCl₃

Rapid growth of algae in water bodies in because of detergent having.

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Carbonat salt

Sulphonic acid

Sulphat salt

Phosphate salt

Infrared radiations emitted by the Earth are absorbed by.

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CO₂ and H₂O

N₂ and O₂

CO₂and N₂

O₂and CO₂

Coal gas is mixture of

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CO and CH₄

CO . CH₄. CO₂

CO, CH₄, H₂

CO, H₂ and CO₂

Number of discovered element till today are.

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140

118

90

16

Which colour of HI is ?

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Orange

Purple

Red

Colourless

When the reaction causes to produced it is called.

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Chemical equlibrium state

Static equilibrium

Dynamic equilibriiun

All

Alkyl radical is derivative of

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Alkane

Alkene

Alkyne

All

Oxidation of alkenes forms:

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Glycol

Glyoxal

Formic acid

Oxalic acid

How trace amount of acetylene present in the coat gas.

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0.06%

0.07%

0.08%

0.09%

Chemical formula of hypochlorous acid is.

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HCl

HOCl

H₂CO₃

HF

Water molecule had a structure;

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non-polar

polar

ionic

tetrahedral

Which one of these is a saturated hydrocarbon?

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C₂H₄

C₃H₆

C₄H₈

C₅H₁₂

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