Antiferomagnetic substances possess
Options
(a) low magnetic moment (b) large magnetic moment (c) zero magnetic moment (d) any value of magnetic moment
Correct Answer:
zero magnetic moment
Explanation:
No explanation available. Be the […]
Tetraethyl lead is used as
Options
(a) anti-knock agent (b) pain killer (c) mosquito repellent (d) fire extinguisher
Correct Answer:
anti-knock agent
Explanation:
No explanation available. Be the first to write the explanation […]
When ethyl chloride and alcoholic KOH are heated, the compound obtained is
Options
(a) C₂H₅OC₂H₅ (b) C₂H₄ (c) C₂H₆ (d) C₂H₅OH
Correct Answer:
C₂H₄
Explanation:
When ethyl chloride is heated with alcoholic potassium […]
How will you separate a solution (miscible) of benzene + CHCl₃
Options
(a) Sublimation (b) Filtration (c) distilation (d) Crystallisation
Correct Answer:
distilation
Explanation:
Distillation particularly fractional distillation because the boiling point of […]
Which of the following is used as refrigerant
Options
(a) SiC (b) CO₂ (c) CF₂Cl₂ (d) CHCl₃
Correct Answer:
CF₂Cl₂
Explanation:
No explanation available. Be the first to write the explanation for this […]
In which process,fused sodium hydroxide is eletrolysed 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 process
Explanation:
No explanation […]
Fusion mixture is
Options
(a) K₂CO₃+ NaHSO₂ (b) K₂CO₃+Na₂CO₃ (c) KHSO₄+Na₂CO₃ (d) KHSO₄+ NaHSO₄
Correct Answer:
K₂CO₃+Na₂CO₃
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
A gas z is bubbled through a solution containing x⁻ and y⁻. If the reduction potential are in the order x > y >z, then
Options
(a) y will oxidise z and not […]
The volume of 0.05 M KMnO₄ solution required to oxidized completely 2.70g of oxalic acid (H₂C₂O₄) in acidic medium will be
Options
(a) 120 cm³ (b) 240 cm³ (c) 360 cm³ (d) 480 […]
The correct order of acidic strength is
Options
(a) HBr < HCl < HI < HF (b) HCl < HBr < HF < HI (c) HF < HCl < HBr < HI (d) […]
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