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Chemistry

Chemistry
The gas used in the artificial ripening of fruits is

Butane
Ethane
Acetylene
Methane

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Chemistry
Which of the following is the major constituent of LPG?

Butane
Methane
Ethane
Propane

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Chemistry
By-product obtained by soap industry is

Naphthalene
Caustic soda
Glycerol
Caustic potash

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Chemistry
Copper substances when exposed to air gains a green coating due to the formation of:

CuSO4
CuO
CuCO3 Cu(OH)2
Cu(NO3)2

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Chemistry
Periodic table contains how many groups

19
18
16
17

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Chemistry
Chemical formula of washing soda is

NaHCO3
Na2SO4.10H2O
Na2CO3.10H2O
Ca(OH)2

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MORE MCQ ON Chemistry

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