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Chemistry

Chemistry
Which one element has the lowest electronegativity value

Fluorine
Radium
Chlorine
Francium

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Chemistry
0.01 mole of NaOH is added to 10 liters of water. The pH of water changes by

4
6
3
7

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Chemistry
The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is

1.568 x 103
6.023 x 1019
4.84 x 1017
6.023 x 1023

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Chemistry
Diamonds are glittering and attractive because light incident on them undergoes

Highest refraction
Multiple surface reflections
Multiple internal reflections
Hundred percent transmission

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Chemistry
Gelatin is mostly used in making ice–creams in order to

Enrich the aroma
Prevent making a colloid
Stabilise mixture
Stabilise the colloid and prevent crystallisation

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Chemistry
The depletion of ozone layer is due to

Chloro fluoro carbon
Sulphur dioxide
Ethane
Carbon dioxide

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MORE MCQ ON Chemistry

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