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Chemistry

Chemistry
Which of the following substance's smell is similar to Ethanoic acid?

Tomato juice
Vinegar
Kerosene
Lemon

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Chemistry
The acid rain destroys vegetations because it contains

Ozone
Sulphuric acid
Nitric acid
Carbon monoxide

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Chemistry
The National Chemical Laboratory (India) is located in

Hyderabad
Bangaluru
Pune
Mumbai

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

NO
F2
HCL
CO

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Chemistry
Petroleum is a mixture of

Hydrocarbons
Elements
Salts
Polymers

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Chemistry
The percentage of oxygen in air is approximately

0.78
0.01
0.21
1

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