When river water meets sea water delta formation takes place. This is due to the phenomenon of
Options
(a) electrophoresis (b) dialysis (c) coagulation (d) adsorption
Correct Answer:
coagulation
Explanation:
No explanation available. […]
The two polypeptide chains present in insulin contain which of the following number of amino acids
Options
(a) 18,12 (b) 30,21 (c) 20,21 (d) 25,16
Correct Answer:
30,21
Explanation:
No explanation available. Be […]
Amino acids,Which build up proteins, have both the carboxylic and amino groups. These amino acids are
Options
(a) α – amino acids (b) β – amino acids (c) γ – amino acids (d) […]
The hydrogen ion concentration in mol/dm, in a 0.2 M solution of a weak acid HA (Ka = 2 x 10⁻⁵) is close to
Options
(a) 2 x 10⁻⁵ (b) 2 x 10⁻⁴ […]
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 […]
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