The pH of the solution, when
(i) sodium acetate is dissolved in water.
(ii) ammonium chloride is dissolved in water.
Dihydrogen can be prepared by which of the following reactions.
(I) Reaction of granulated Zn with dil. HCl
(II) Reaction of Zn with $a q . \mathrm{NaOH}$
(III) By heating calcium hydrogen carbonate
The carbonates of alkaline earth metals decompose on heating to give
I. $\mathrm{CO}_2$
II. Metal oxide
III. $\mathrm{H}_2 \mathrm{O}$
IV. CO
Borax is converted into crystalline boron by the following steps :
$$ \text { Borax } \xrightarrow[\mathrm{H}_2 \mathrm{O}]{X} \mathrm{H}_3 \mathrm{BO}_3 \xrightarrow{\Delta} \mathrm{~B}_2 \mathrm{O}_3 \xrightarrow[\Delta]{Y} B $$
Identify $X$ and $Y$ respectively.
TS EAMCET Papers
All year-wise previous year question papers