Q. The electronic configuration of an atom having atomic number '20' is
1) 2, 8, 10
2) 2, 8, 8, 2
3) 2, 6, 8, 4
4) 2, 10, 8
Q. When water itself combines chemically with some element or mineral it is called
1) Carbonation
2) Oxidation
3) Desilication
4) Hydration
Q. A solution of zinc chloride cannot be stored in a vessel made of
1) Lead
2) Aluminium
3) Silver
4) Gold
Q. Concentrated, HNO3 can be stored in container made up of—
1) Cu
2) Al
3) Sn
4) Zn
Q. The source of hydrogen for carbon assimilation —
1) FADH2
2) NADPH2
3) H2O
4) RuBP
Q. An important ancillary product used in the petrochemicals industry is —
1) Naphtha
2) Petrol
3) Kerosene
4) Mobil
Q. Coke is obtained by burning—
1) Iron
2) Benzol
3) Naphthalene
4) Coal
Q. Which has the maximum number of atoms?
1) 108 g of Ag
2) 24 g of C
3) 56 g of Fe
4) 26 g of AI
Q. ____ is extracted from Bauxite.
1) Mica
2) Copper
3) Aluminium
4) Tin
Q. The main constituent gas of LPG is —
1) Benzene
2) Ethane
3) Methane
4) Butane
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