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Chemistry

Chemistry
If all bullets could not be removed from gun shot injury of a man, it may cause poisoning by

Iron
Mercury
Arsenic
Lead

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Chemistry
Atoms of same element having different mass numbers are called________

Isobars
Isotones
Isotopes
Isomers

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

Propane
Butane
Ethane
Methane

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Chemistry
The substance most commonly used as a food preservative is

Sodium salt of benzoic acid
Sodium carbonate
Tartaric acid
Acetic acid

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Chemistry
Interveinal necrotic spots on leaves appear due to

NO2injury
HF injury
SO2injury
O3injury

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Chemistry
Number of hydrogen atoms in a Glucose molecule

12
8
14
6

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MORE MCQ ON Chemistry

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