A. Protium
B. Deuterium
C. Tritium
D. Nichromium

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A. Copper sulphate
B. Barium sulphate / Mg^{+2 /} Al³⁺ salts
C. Cobalt sulphate
D. Nickel sulphate

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A. Methane
B. Ethane
C. Hydrogen
D. Nitrogen

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A. Zinc
B. Carbon (Graphite)
C. ZnCl²
D. MnO²(Pyrolusite) à oxidizing agent is dry cell

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A. reflection
B. refraction
C. dispersion
D. all  of the above

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A. Helium
B. Hydrogen
C. Chlorine
D. Carbon

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A. Ammonia
B. 1°Alkyl ammine
C. 2° Alkyl ammine
D. 3° Alkyl ammine

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A. Benzene

B. p-nitrobenzene

C. Phenol                               

D. Cresol

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A. 1° alcohol
B. 2° alcohol
C. 3° alcohol
D. 0° alcohol

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A. 22%
B. 11.11%
C. 31.13%
D. 15.15%

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