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Chemistry

Chemistry
Identify the metal which is non toxic in nature.

Cadmium
Gold
Cobalt
Chromium

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Chemistry
Of the following compounds of calcium, the one having highest covalent character is

CaF2
Cal2
Cacl2
CaBr2

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Chemistry
A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be

Silver
Aluminium
Zinc
Copper

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Chemistry
Milk is a

Mixture
Element
Metal
None of these

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Chemistry
A matured mammalian cell without nucleus is

Lymphocyte
Oocyte
Erythrocyte
Spermatozoan

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Chemistry
The buffer action of blood is due to the presence of

[HCO3]– and H2CO3
CI– and [HCO3]–
HCI and NaCI
CI– and [CO3]2–

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