In which process,fused sodium hydroxide is eletrolysed at a 330⁰C temperature for extraction of sodium
Options
(a) Castner’s process (b) Cyanide process (c) Down’s process (d) both (b) and (c)
Correct Answer:
Castner’s […]
Bleaching powder is prepared from the reaction of
Options
(a) slacked lime and chlorine (b) quicklime and chlorine (c) burnt lime and chlorine (d) calcium and chlorine
Correct Answer:
slacked lime and chlorine
Formula of gypsum is
Options
(a) CaSO₄.2H₂O (b) CaSO₄.1/2H₂O (c) 3CaSO₄.H₂O (d) 2CaSO₄.2H₂O
Correct Answer:
CaSO₄.2H₂O
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
Correct order of the stability of group IIA metal carbonates is
Options
(a) MgCO₃ > CaCO₃ > SrCO₃ > BaCO₃ (b) BaCO₃ > SrCO₃ > CaCO₃ > MgCO₃ (c) SrCO₃ > BaCO₃ > […]
Choose the incorrect statement in the following
Options
(a) BeO is almost insoluble but BeSO₄ is solution in water (b) BeO is soluble but BaSO₄ is insoluble in water (c) Lil is more […]
The alkali halide that is soluble in pyridine is
Options
(a) NaCl (b) LiCl (c) KCl (d) CsI
Correct Answer:
LiCl
Explanation:
No explanation available. Be the first to write the explanation for […]
The increasing order of the density of alkali metals
Options
(a) Li < K < Na < Rb < Cs (b) Li < Na < K < Rb < Cs (c) Cs < […]
Choose the paramagnetic oxide in the following
Options
(a) Na₂O (b) MgO (c) KO₂ (d) BeO
Correct Answer:
KO₂
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Which one of the following metals is required as cofactor by all enzymes utilizing ATP in phosphate transfer
Options
(a) K (b) Ca (c) Na (d) Mg
Correct Answer:
Mg
Explanation:
No explanation […]
Which one of the following does not react with water even under red hot condition
Options
(a) Na (b) Be (c) Ca (d) K
Correct Answer:
Be
Explanation:
No explanation available. Be the […]
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