2206: Match List I (Oxdiation number) with List II (The element) and select the correct answer using the codes given below this lists:
List I List II
(Oxidation number) (The element)
A. 2 1. Oxidation number of Mn in MnO2
B. 3 2. Oxidation number of S in H2S2O7
C. 4 3. Oxidation number of Ca in CaO2
D. 6 4. Oxidation number of Al in NaAIH4
Codes:
A B C D
(a) 3 4 1 2
(b) 4 3 1 2
(c) 3 4 2 1
(d) 4 3 2 1
2207: Metals used in voltaic cell are:
(a) Zinc and lead
(b) Carbon and zinc
(c) Zinc and copper
(d) Carbon and nickel
2208: Global Financial Stability Report is prepared by the
(a) European Central Bank
(b) International Monetary Fund
(c) International Bank for Reconstruction and Development
(d) Organization for Economic Cooperation and Development
2209: Match List I (Scientists) with List II (Achievement) and select the correct answer using the codes given below the lists:
List I (Scientists)
A. Arber and Smith
B. Feldman
C. Mullis
D. Temin and Baltimore
List II (Achievement)
1. Developed transgenic plants with Agrobacterium T-DNA
2. Discovered endonucleares
3. Discovered reverse transcriptase
4. Discovered polymerase chain reaction
Codes:
A B C D
(a) 2 1 4 3
(b) 1 2 4 3
(c) 2 1 3 4
(d) 1 2 3 4
2210: In a school, out of 40 staff members, 30 are males. Some of the female teachers can sing while no male can sing. The principal invited six persons to a party by drawing lots. It was found that no member in the party could sing. Which of the following conclusions can be definitely drawn?
(a) Only males were invited to the party
(b) Some of the invitees were males and some were females who could not sing
(c) Only females, who could not sing, were invited to the party
(d) None of the above