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Chemistry

Chemistry
Which of the following is a natural polymer?

Bakelite
Nylon
Polythene
Starch

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Chemistry
Atoms of same element having different mass numbers are called________

Isotopes
Isotones
Isomers
Isobars

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Chemistry
When a bond is formed between two atoms, the energy of the system will

Increase
May increase or decrease
Decrease
Remain the same

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Chemistry
What are the major pollutants of cigarette smoke?

Carbon monoxide and nicotine
Dioxin and benzene
Carbon monoxide and dioxin
Carbon monoxide and benzene

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Chemistry
Which of the following is used to denature ethanol ?

Methyl alcohol
Propyl alcohol
Methane
Phenol

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Chemistry
Brine refers to :

Pure water
Sweet water
Salt water
Starch water

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MORE MCQ ON Chemistry

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