During the crystallization of a solid from the aqueous solution, the following statement is correct (∆H is -ve)
Options
(a) ∆H = T∆S (b) ∆H > T∆S (c) ∆H < T∆S (d) None […]
An aqueous solution of sodium sulphate is electrolysed using inert electrodes.The products at the cathode and anode are respectively
Options
(a) H₂ , O₂ (b) O₂ , H₂ (c) O₂ , Na (d) […]
An organic compound A(C₄H₉Cl) on reaction with Na/diethylether gives a hydrocarbon,which on monochlorination gives only one chloro derivative.A is
Options
(a) t-butyl chloride (b) sec-butyl chloride (c) iso-butyl chloride (d) n-butyl chloride
Correct […]
Mohr’s salt is
Options
(a) FeSo₄(NH₄)₂SO₄.6H₂O (b) FeSO₄.7H₂O (c) Fe₂ (SO₄)₃(NH₄)₂SO₄.6H₂O (d) MgSO₄.7H₂O
Correct Answer:
FeSo₄(NH₄)₂SO₄.6H₂O
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
In dichromate dimer
Options
(a) 4 Cr – O bonds are equal (b) 6 Cr – O bonds are equal (c) all Cr – O bonds are equal (d) all Cr – O […]
NH₃ is added BF₃ by
Options
(a) ionic bond (b) covalent bont (c) dative bond (d) molecular bond
Correct Answer:
dative bond
Explanation:
No explanation available. Be the first to write the explanation […]
The greenhouse gas is
Options
(a) CO₂ (b) SO₂ (c) N₂ (d) H₂S
Correct Answer:
CO₂
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
An isomer of ethanol is
Options
(a) dimethyl ether (b) methanol (c) ethylene glycol (d) diethyl ether
Correct Answer:
dimethyl ether
Explanation:
No explanation available. Be the first to write the explanation for […]
Main constituents of LPG is
Options
(a) methane (b) iso-butane,propane (c) H₂,CH₄,iso-butane (d) none of these
Correct Answer:
iso-butane,propane
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Name of the compound O₂ PtF₆
Options
(a) oxygenyl fluoroplatinate ( IV) (b) dioxygenyl fluoroplatinate (V) (c) dioxygenyl hexafluoroplatinate (IV) (d) dioxygenyl hexafluoroplatinate (V)
Correct Answer:
dioxygenyl hexafluoroplatinate (V)
Explanation:
No explanation available. […]
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