1. Ammonia can be dried by
a. conc H2SO4 b. P4O10
c. CaO d. anhydrous CaCl2
2. The chemical process in the production of steel from haematite or involves:
a. reduction b. oxidation
c. reduction followed by oxidation d. oxidation followed by reduction
3. The number of P-O-P bonds in cyclic metaphosphoric acid is:
a. zero b. two c. three d. four
4. When two reactants, A and B are mixed to give products C and D, the reaction quotient, Q, at the initial stages of the reaction
a. is zero. b. decreases with time
c. is independent of time d. increases with time
5. The number of nodal planes in a px orbital is
a. one b. two c. three d. zero
Source: JEE 2000
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