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Chemistry

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

HCI
HF
HBr
HI

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Chemistry
Which of the following in automobile exhaust can cause cancer?

Carbon monoxide
Polyclinic hydrocarbons
Oxides of nitrogen
Lead

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Chemistry
Which of the following is chiefly present in LPG (Liquefied Petroleum Gas) ?

Ethane
Methane
Butane
Propane

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Chemistry
The tip of the match-stick contains

Red phosphorus
Phosphorus pentoxide
Phosphorus trichloride
White phosphorus

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Chemistry
Sour milk contains

Tartaric acid
Lactic acid
Citric acid
Acetic acid

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Chemistry
When there are two electrons in the same orbital, they have:

Same spin
Same or opposite spin
Opposite spin
No spin

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MORE MCQ ON Chemistry

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