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Chemistry

Chemistry
Atomic number is the number equal to

Neutrons
Electrons
Protons
None of these

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Chemistry
The lowest layer of earth's atmosphere is

Troposphere
Mesosphere
Ionosphere
Stratosphere

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Chemistry
Type metal used in printing press is an alloy of

Lead and zinc
Lead and copper
Lead and bismuth
Lead and antimony

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Chemistry
Iodex, a pain relief balm, has the smell of ________ .

Ethyl salicylate
Butyl salicylate
Methyl salicylate
Propyl salicylate

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Chemistry
Which of the following is not present in German-silver?

Zinc
Copper
Silver
Nickel

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Chemistry
Which one is a naturally occuring noble gas

Boron
Argon
Potassium
Sodium

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MORE MCQ ON Chemistry

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