A. Sodium thiosulphate
B. Ethyl magnesium chloride
C. Sodium sulphite
D. Sodium bicarbonate
Related Mcqs:
- Grignard reagent is chemically known as ____________________?
A. Ethyl magnesium chloride
B. Methyl magnesium chloride
C. Dichlorophenol
D. Monochloroacetic acid - Chemical formula of BHC, which is an insecticide is__________________?
A. C6H6Cl6
B. C6Cl6
C. C6H5Cl
D. C6H4Cl2 - Chemical name of ‘alum’ is__________________?
A. Barium sulphate
B. Aluminium sulphate
C. Aluminium chloride
D. Calcium sulphate - Chemical formula of oleum is_________________?
A. H2SO3
B. H2SO4
C. H2S2O7
D. H2SO7 - Chemical formula of ‘salt cake’ is____________________?
A. Na2SO4
B. CaSO4
C. MgSO4
D. BaSO4 - CaCl(OCl) is the chemical formula of___________________?
A. Hypo
B. Bleaching powder
C. Plaster of Paris
D. Aqua regia - ______________ is an ore concentrating metallurgical process involving a chemical change?
A. Electromagnetic separation
B. Froth floatation
C. Roasting
D. None of these - Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of_________________?
A. Carbon
B. Arsenic
C. Lead
D. Sulphur - At very high concentration of enzymes, the rate of fermentation chemical reaction is _____________ the concentration of reactants?
A. Independent of
B. Directly proportional to
C. Inversely proportional to
D. Proportional to the square of - Superior quality laboratory apparatus is made of the _____________ glass having low thermal co-efficient of expansion & high chemical resistance?
A. Flint
B. Soda
C. Pyrex
D. Potash
