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Chemistry

Chemistry
A subshell with l=2 can take up

10 electron
5 electron
8 electron
3 electron

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Chemistry
Which among the following is a covalent compound ?

Calcium chloride
Magnesium fluoride
Sodium chloride
Carbon tetrachloride

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Chemistry
Which of the following is not a donor atom?

Antimony
Phosphorus
Arsenic
Aluminium

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Chemistry
Which of the following has pH value 7?

H2SO4
Sodium Carbonate
HCl
Pure Water

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Chemistry
Extensively used nitrogenous fertilizer is

Nitro-lime
Ammonium sulphate
Ammonium nitrate
Urea

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Chemistry
Which substance is used to retard the setting action of cement?

Na2O + K2O
Al2O3
CaO
CaSO4, 2H2O

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