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Chemistry

Chemistry
Which of the following gases is most toxic ?

Carbon monoxide
Carbon dioxide
Sulphur dioxide
Chlorine

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Chemistry
How many neutrons are there in 92U238 atom ?

92
238
146
330

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Chemistry
Bleaching powder is used in drinking water as a/an

Antiseptic
Antibiotic
Coagulant
Disinfectant

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Chemistry
What are the number of moles of CO2 which contains 16 g of oxygen?

0.25 mole
0.2 mole
0.4 mole
0.5 mole

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Chemistry
The most abundant rare gas in the atmosphere is

He
Ne
Xe
Ar

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Chemistry
The molecule which has the highest percentage of ionic character among the following is

HBr
HI
HF
HCI

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MORE MCQ ON Chemistry

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