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Chemistry

Chemistry
Which of the following is an antidiabatic drug?

Penicillin
Chloroquine
Insulin
Aspirin

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Chemistry
Tetra ethyle lead (TEL) is

A catalyst in burning fossil fuel
A reductant
An antioxidant
An antiknock compound

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Chemistry
Commercial Vaseline is derived from

Plant gums
Petroleum
Coal tar
Wool wax

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Chemistry
Silver halides are used in photographic plates because they are

Soluble in hyposolution
Totally colourless
Oxidised in air
Reduced by light

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Chemistry
What are the number of moles of CO2 which contains 16 g of oxygen?

0.2 mole
0.5 mole
0.4 mole
0.25 mole

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Chemistry
When cathode rays strike a target of high atomic weight, they give rise to

Positive rays
? and ? rays
X-rays
?-rays

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