Mortar is NOT used for under-water construction because
Mortar is NOT used for under-water construction because A. it hardens by lose of water B. its hardening…
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Vulcanization of rubber is a process by which
Vulcanization of rubber is a process by which A. isoprene units are joined to produce rubber B. rubber…
When excess chlorine is mixed with ethene at room temperature, the product is
When excess chlorine is mixed with ethene at room temperature, the product is A. 1,2 – dichloroethane B.…
The scale of a chemical balance is made of iron plate and coated with copper…
The scale of a chemical balance is made of iron plate and coated with copper electrolytically because A.…
A metal is extracted from its ore by the electrolysis of its molten chloride and…
A metal is extracted from its ore by the electrolysis of its molten chloride and it displaces lead…
Bleaching powder, CaOCI2, H2O, deteriorates on exposure to air because
Bleaching powder, CaOCI2, H2O, deteriorates on exposure to air because A. it loses its water of crystallization B.…
The products of the thermal decomposition of ammonium trioxonitrate (V) are
The products of the thermal decomposition of ammonium trioxonitrate (V) are A. NO 2 and oxygen B. NH3…
Gunpower is made from charcoal, sulphur and potassium trioxonitrate (V) The salt in the mixture…
Gunpower is made from charcoal, sulphur and potassium trioxonitrate (V) The salt in the mixture performs the function…
Which of the following reactions is (are) feasible? I Br (1) + 2CI 2(aq) 2Br…
Which of the following reactions is (are) feasible? I Br (1) + 2CI 2(aq) 2Br (aq) + CI…
The catalyst used in the contact process for the manufacture of tetraoxosulphate (VI) acid is
The catalyst used in the contact process for the manufacture of tetraoxosulphate (VI) acid is A. manganes (IV)…