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Chemistry

Chemistry
Zinc sulphide is commonly used as

Herbicide
Deodorant
Rodenticide
Fungicide

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Chemistry
Polythene is polymer of

Aniline
Propylene
Acetylene
Ethylene

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Chemistry
Indane gas is mixture of

Butane and hydrogen
Methane and oxygen
Butane and propane
Butane and oxygen

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Chemistry
Which of the following is not present in RNA

Thymine
Uracil
Ribose
Phosphate

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Chemistry
Which of the toxic heavy metals is found in modern tannery industries ?

Zinc
Nickel
Chromium
Lead

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Chemistry
Atoms of same element having different mass numbers are called________

Isotopes
Isotones
Isomers
Isobars

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