Reactions in Solutions
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306862 Equivalent wt. of \({H_3}P{O_4}\) in each of the reaction will be respectively [Molar mass of \({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}\) : 98 g/mol]
\({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + O}}{{\rm{H}}^{\rm{ - }}} \to {{\rm{H}}_{\rm{2}}}{\rm{PO}}_{\rm{4}}^{\rm{ - }}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
\({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + 2O}}{{\rm{H}}^{\rm{ - }}} \to {\rm{HPO}}_{\rm{4}}^{{\rm{2 - }}}{\rm{ + 2}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
\({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + 3O}}{{\rm{H}}^{\rm{ - }}} \to {\rm{PO}}_{\rm{4}}^{{\rm{3 - }}}{\rm{ + 3}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)

1 98, 49, 32.67
2 49, 98, 32.67
3 98, 32.67, 49
4 32.67, 49, 98
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306863 One gram of a metal chloride was found to contain 0.835 g of chlorine. Its vapour density is 85. The molecular formula of metal chloride is

1 \({\rm{MCl}}\)
2 \({\rm{MC}}{{\rm{l}}_{\rm{2}}}\)
3 \({\rm{MC}}{{\rm{l}}_{\rm{3}}}\)
4 \({\rm{MC}}{{\rm{l}}_{\rm{4}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306864 In the reaction
\({\rm{B}}{{\rm{r}}_{\rm{2}}}{\rm{ + N}}{{\rm{a}}_{\rm{2}}}{\rm{C}}{{\rm{O}}_{\rm{3}}} \to {\rm{NaBr + NaBr}}{{\rm{O}}_{\rm{3}}}{\rm{ + C}}{{\rm{O}}_{\rm{2}}}\)
The equivalent weight of \({\rm{NaBr}}{{\rm{O}}_{\rm{3}}}\) is

1 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{\rm{1}}}\)
2 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{{\rm{10}}}}\)
3 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{\rm{5}}}\)
4 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{\rm{4}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306865 3 g of activated charcoal was added to 50 mL of acetic acid solution 0.06N in a flask. After an hour it was filtered and the strength of the filtrate was found to be 0.042 N. The amount of acetic acid adsorbed (per gram of charcoal) is:

1 42 g
2 54 g
3 18 mg
4 36 mg
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306862 Equivalent wt. of \({H_3}P{O_4}\) in each of the reaction will be respectively [Molar mass of \({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}\) : 98 g/mol]
\({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + O}}{{\rm{H}}^{\rm{ - }}} \to {{\rm{H}}_{\rm{2}}}{\rm{PO}}_{\rm{4}}^{\rm{ - }}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
\({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + 2O}}{{\rm{H}}^{\rm{ - }}} \to {\rm{HPO}}_{\rm{4}}^{{\rm{2 - }}}{\rm{ + 2}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
\({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + 3O}}{{\rm{H}}^{\rm{ - }}} \to {\rm{PO}}_{\rm{4}}^{{\rm{3 - }}}{\rm{ + 3}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)

1 98, 49, 32.67
2 49, 98, 32.67
3 98, 32.67, 49
4 32.67, 49, 98
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306863 One gram of a metal chloride was found to contain 0.835 g of chlorine. Its vapour density is 85. The molecular formula of metal chloride is

1 \({\rm{MCl}}\)
2 \({\rm{MC}}{{\rm{l}}_{\rm{2}}}\)
3 \({\rm{MC}}{{\rm{l}}_{\rm{3}}}\)
4 \({\rm{MC}}{{\rm{l}}_{\rm{4}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306864 In the reaction
\({\rm{B}}{{\rm{r}}_{\rm{2}}}{\rm{ + N}}{{\rm{a}}_{\rm{2}}}{\rm{C}}{{\rm{O}}_{\rm{3}}} \to {\rm{NaBr + NaBr}}{{\rm{O}}_{\rm{3}}}{\rm{ + C}}{{\rm{O}}_{\rm{2}}}\)
The equivalent weight of \({\rm{NaBr}}{{\rm{O}}_{\rm{3}}}\) is

1 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{\rm{1}}}\)
2 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{{\rm{10}}}}\)
3 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{\rm{5}}}\)
4 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{\rm{4}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306865 3 g of activated charcoal was added to 50 mL of acetic acid solution 0.06N in a flask. After an hour it was filtered and the strength of the filtrate was found to be 0.042 N. The amount of acetic acid adsorbed (per gram of charcoal) is:

1 42 g
2 54 g
3 18 mg
4 36 mg
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306862 Equivalent wt. of \({H_3}P{O_4}\) in each of the reaction will be respectively [Molar mass of \({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}\) : 98 g/mol]
\({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + O}}{{\rm{H}}^{\rm{ - }}} \to {{\rm{H}}_{\rm{2}}}{\rm{PO}}_{\rm{4}}^{\rm{ - }}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
\({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + 2O}}{{\rm{H}}^{\rm{ - }}} \to {\rm{HPO}}_{\rm{4}}^{{\rm{2 - }}}{\rm{ + 2}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
\({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + 3O}}{{\rm{H}}^{\rm{ - }}} \to {\rm{PO}}_{\rm{4}}^{{\rm{3 - }}}{\rm{ + 3}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)

1 98, 49, 32.67
2 49, 98, 32.67
3 98, 32.67, 49
4 32.67, 49, 98
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306863 One gram of a metal chloride was found to contain 0.835 g of chlorine. Its vapour density is 85. The molecular formula of metal chloride is

1 \({\rm{MCl}}\)
2 \({\rm{MC}}{{\rm{l}}_{\rm{2}}}\)
3 \({\rm{MC}}{{\rm{l}}_{\rm{3}}}\)
4 \({\rm{MC}}{{\rm{l}}_{\rm{4}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306864 In the reaction
\({\rm{B}}{{\rm{r}}_{\rm{2}}}{\rm{ + N}}{{\rm{a}}_{\rm{2}}}{\rm{C}}{{\rm{O}}_{\rm{3}}} \to {\rm{NaBr + NaBr}}{{\rm{O}}_{\rm{3}}}{\rm{ + C}}{{\rm{O}}_{\rm{2}}}\)
The equivalent weight of \({\rm{NaBr}}{{\rm{O}}_{\rm{3}}}\) is

1 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{\rm{1}}}\)
2 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{{\rm{10}}}}\)
3 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{\rm{5}}}\)
4 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{\rm{4}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306865 3 g of activated charcoal was added to 50 mL of acetic acid solution 0.06N in a flask. After an hour it was filtered and the strength of the filtrate was found to be 0.042 N. The amount of acetic acid adsorbed (per gram of charcoal) is:

1 42 g
2 54 g
3 18 mg
4 36 mg
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306862 Equivalent wt. of \({H_3}P{O_4}\) in each of the reaction will be respectively [Molar mass of \({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}\) : 98 g/mol]
\({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + O}}{{\rm{H}}^{\rm{ - }}} \to {{\rm{H}}_{\rm{2}}}{\rm{PO}}_{\rm{4}}^{\rm{ - }}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
\({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + 2O}}{{\rm{H}}^{\rm{ - }}} \to {\rm{HPO}}_{\rm{4}}^{{\rm{2 - }}}{\rm{ + 2}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
\({{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + 3O}}{{\rm{H}}^{\rm{ - }}} \to {\rm{PO}}_{\rm{4}}^{{\rm{3 - }}}{\rm{ + 3}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)

1 98, 49, 32.67
2 49, 98, 32.67
3 98, 32.67, 49
4 32.67, 49, 98
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306863 One gram of a metal chloride was found to contain 0.835 g of chlorine. Its vapour density is 85. The molecular formula of metal chloride is

1 \({\rm{MCl}}\)
2 \({\rm{MC}}{{\rm{l}}_{\rm{2}}}\)
3 \({\rm{MC}}{{\rm{l}}_{\rm{3}}}\)
4 \({\rm{MC}}{{\rm{l}}_{\rm{4}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306864 In the reaction
\({\rm{B}}{{\rm{r}}_{\rm{2}}}{\rm{ + N}}{{\rm{a}}_{\rm{2}}}{\rm{C}}{{\rm{O}}_{\rm{3}}} \to {\rm{NaBr + NaBr}}{{\rm{O}}_{\rm{3}}}{\rm{ + C}}{{\rm{O}}_{\rm{2}}}\)
The equivalent weight of \({\rm{NaBr}}{{\rm{O}}_{\rm{3}}}\) is

1 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{\rm{1}}}\)
2 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{{\rm{10}}}}\)
3 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{\rm{5}}}\)
4 \(\frac{{{\rm{Mol}}{\rm{.wt}}}}{{\rm{4}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306865 3 g of activated charcoal was added to 50 mL of acetic acid solution 0.06N in a flask. After an hour it was filtered and the strength of the filtrate was found to be 0.042 N. The amount of acetic acid adsorbed (per gram of charcoal) is:

1 42 g
2 54 g
3 18 mg
4 36 mg