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(R) K[Co(NH ) (NO ) 4 ]
1. The volume strength of 1.5 N H 2 O 2 solution is
(Q) [Cr(NH 3 ) 5 (NO 2 )] 3 [Co(NO 2 ) 6 ] 2 (c) 145.2 minutes (d) 138.8 minutes
(a) 4.8 (b) 8.4 (c) 3.0 (d) 8.0
3 2 2
(S) [Cr(NH 3 ) 3 (NO 2 ) 3 ]
2. If the concentration of glucose (C
(a) P > Q > R > S (b) P > R > Q > S
6 H 12 O 6 ) in blood
is 0.9 g L –1 , what will be the molarity of glucose in
(c) Q > P > R > S (d) S > R > P > Q
blood?
(a) 5 M (b) 50 M (c) 0.005 M (d) 0.5 M
10. If heavy water is taken as solvent instead of normal
water while performing Cannizzaro reaction, the
products of the reaction are
3. The ozone in the stratosphere is destroyed by
•
(a) RCOO – and RCH
(a) Cl (b) • OH (c) • H (d) • ClO
2 OH
4. If ∆ o < P, the correct electronic configuration for d 4 (b) RCOO – and RCH 2 OD
(c) RCOOD and RCD 2 OD
system will be
(a) t 3 2g e 1 g (b) t 4 2g e 0 g (c) t 0 2g e 4 g (d) t 2 2g e 2 (d) RCOO – and RCD 2 OD
g
11. The correct IUPAC name of the following alkene
5. Wavelength of high energy transition of H-atom is
91.2 nm. The corresponding wavelength of He + is
(a) 91.2 nm (b) 22.8 nm
is
(c) 54.5 nm (d) 45.6 nm
6. Shape of O 2 F 2 is similar to that of
(a) Z-3-methyl-4-propyl-3-octene
(a) C 2 F 2 (b) H 2 O 2 (c) H 2 F 2 (d) C 2 H 2
(b) E-3-methyl-4-propyl-3-octene
(c) E-4-butyl-3-methyl-3-heptene
7. Formation of polyethylene from calcium carbide
(d) E-2-ethyl-3-propyl-2-heptene.
takes place as follows :
CaC 2 + 2H 2 O Ca(OH) 2 + C 2 H 2
12. Select the process that represents smelting.
C 2 H 2 + H 2 C 2 H 4
(a) Al 2 O 3 + 3H 2 O 2Al(OH) 3
nC 2 H 4 ( CH2CH2)
n
(b) ZnCO 3 ZnO + CO 2
The amount of polyethylene obtained from 64.0 kg
of CaC 2 is
(c) Fe 2 O 3 + 3C 2Fe + 3CO
(a) 7 kg (b) 14 kg (c) 21 kg (d) 28 kg (d) 2Pb + O 2 2PbO
8. When ammoniacal solution of MgSO 4 is heated
with Na 2 HPO 4 in presence of NH 4 Cl, a white
precipitate of ______ is formed.
13. An energy of 24.6 eV is required to remove one of
the electrons from a helium atom. The total energy
required to remove both the electrons from helium
(a) Mg(NH 4 )PO 4 (b) Mg 3 (PO 3 ) 2
atom is
(c) MgSO 4 . MgCl 2 (d) MgSO 4 . Mg 3 (PO 4 ) 2 (a) 38.2 eV (b) 49.2 eV (c) 51.8 eV (d) 79.0 eV
9. Arrange the following complexes in the order of
decreasing molar conductivity :
14. A first order reaction is 15% completed in
20 minutes. How long will it take to complete 60% ?
(P) Mg[Cr(NH 3 )(NO 2 ) 5 ]
(a) 123.3 minutes (b) 112.7 minutes
10 CHEMISTRY TODAY | APRIL ‘17