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Chemistry

Chemistry
The elements with atomic numbers 9, 17, 35, 53, 85 are all

Halogens
Light metals
Heavy metals
Noble gases

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Chemistry
The wire of flash bulb is made of:

Silver
Copper
Magnesium
Barium

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Chemistry
An acid having basicity one is

Sodium dihydrogen phosphate
Disodium hydrogen phosphate
Sodium phosphate
Phosphoric acid

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Chemistry
Supersonic jet causes pollution by thinning of

O 2 layer
SO2 layer
O3 layer
CO2 layer

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Chemistry
The charcoal used to decolourise brown sugar solution is

Coconut charcoal
Animal charcoal
Wood charcoal
Sugar charcoal

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Chemistry
Which of the following molecules has a bond order of 2.5

NO
CO
F2
HCL

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MORE MCQ ON Chemistry

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