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Chemistry

Chemistry
An element of atomic no. 29 belongs to

P-block
S-block
F-block
D-block

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Chemistry
The acid used in lead storage cells is

Nitric acid
Phosphoric acid
Hydrochloric acid
Sulphuric acid

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Chemistry
In which of the following substances all carbon atoms are quaternary in nature ?

Graphite
Napthalene
Teflon
Diamond

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Chemistry
A matured mammalian cell without nucleus is

Oocyte
Lymphocyte
Erythrocyte
Spermatozoan

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Chemistry
The method of concentrating the ore which makes use of the difference in density between ore and impurities is called

leaching
liquation
magnetic separation
levigation

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Chemistry
The temperature of oxy-acetylene flame is around

3200°C
4000°C
3600°C
2800°C

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