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Chemistry

Chemistry
The maximum number of covalent formed by nitrogen is

3
4
1
2

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Chemistry
When there are two electrons in the same orbital, they have:

Same or opposite spin
Opposite spin
Same spin
No spin

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Chemistry
Number of6.023 × 1020 atoms present in one mole of a gas at STP is

6.023 × 1023
'6.023 × 10–20
'6.023 × 10–23
6.023 × 1020

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Chemistry
The most extensive, commercially useful source of thorium as monazite sand occurs in India at

Orissa coast
Travancore coast
West Bengal coast
Gujarat coast

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Chemistry
The substance that is added to make natural rubber strong and more bouncy is

Polythene
Chlorine
Sulphur
Sponge

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Chemistry
The strongest acid of the following is

P-chlorophenol
M-nitrophenol
P-nitrophenol
O-nitrophenol

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MORE MCQ ON Chemistry

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