1.

Select the correct choice for given statements. T for true and F - for false (i) The physical properties of hydrogen are like those of metals. (ii) Some chemical properties of hydrogen are those of metals and of non-metals. (iii) Metals of groups 7, 8 and 9 form nonstoichiometric hydrides. (iv) The percentage of water in natural sources like rivers is 2.04.

Answer»

i-F,ii-T,iii-F,iv-F
i-T,ii-T,iii-T,iv-F
i-T,ii-F,iii-F,iv-F
i-F,ii-T,iii-F,iv-T

Answer :A


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