Q. Which one of the following is used as a binder in paints?
1) Titanium dioxide
Q. Which one of the following minerals is used as a fuel in nuclear power stations?
Q. Which one of the following is an example of a clean fuel?
Q. Which one of the following metals does not react with cold water?
1) Calcium (Ca)
2) Potassium (K)
3) Magnesium (Mg)
4) Sodium (Na)
Q. In which of the following pairs are the ions isoelectronic?
1) Mg2+, Ar
2) Na+, O2-
4) K+, Ne
Q. Dinitrogen (N2) and dioxygen (O2) are the main constituents of air but they do not react with each other to form oxides of nitrogen because -
1) the reaction requires initiation by a catalyst
2) oxides of nitrogen are unstable
3) the reaction is endothermic and requires very high temperature
4) the stoichiometry of N2 and O2 in air is not ideal for the reaction to take place
Q. Which one of the following is an organic acid?
1) Hydrochloric acid
2) Nitric acid
3) Acetic acid
4) Sulphuric acid
Q. Basic scientific principle behind a nuclear reactor is -
1) Nuclear fusion
2) Controlled nuclear fusion
3) Uncontrolled nuclear fission
4) Controlled nuclear fission
Q. On exposure to moist air, copper gains a green coat on its surface due to formation of which one of the following compounds?
1) Copper carbonate
2) Copper oxide
3) Copper sulphate
4) Copper nitrate
Q. Which one of the following will not produce carbon dioxide on reacting with an aqueous solution of hydrochloric acid?
2) Quick Lime
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