PRACTICAL CHEMISTRY
« First Topic in Last Topic in »
PRACTICAL CHEMISTRY

37506 In the iodometric estimation in laboratory, which process is involved ?

1 \(C{r^2}{O_7}^{2 - } + {H^ + } + {I^ - } \to 2C{r^{3 + }} + {I_2},\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}{O_6}^{2 - } + {I^ - }\)
2 \(Mn{O_4}^ - + {H^ + } + {I^ - } \to Mn{O_2} + {I_2}\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}{O_6}^{2 - } + {I^ - }\)
3 \(Mn{O_4}^ - + O{H^ - } + {I^ - } \to Mn{O_2} + {I_2}\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}O_6^{2 - } + {I^ - }\)
4 \(C{r_2}{O_7}^{2 - } + O{H^ - } + {I^ - } \to 2C{r^{3 + }} + {I_2}\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}O_6^{2 - } + {I^ - }\)
PRACTICAL CHEMISTRY

37507 What is the volume of \(0.1\) \(N-HCl\) required to react completely with \(1.0 \,gm\) of pure calcium carbonate.......\(c{m^3}\)

1 \(100\)
2 \(150\)
3 \(250\)
4 \(200\)
PRACTICAL CHEMISTRY

37508 The weight of a residue obtained by heating \(2.76 \,g\) of silver carbonate is......\(g\)

1 \(2.76\)
2 \(2.98\)
3 \(2.16\)
4 \(2.44 \)
PRACTICAL CHEMISTRY

37509 What is the molarity of \({H_2}S{O_4}\) solution if \(25\, ml\) is exactly neutralised with \(32.63\, ml\) of \(0.164 \,M\), \(NaOH\)

1 \(0.107 \,M\)
2 \(0.126 \,M\)
3 \(0.214 \,M\)
4 \(-0.428 \,M\)
NEET DIGITAL LIBRARY
PRACTICAL CHEMISTRY

37506 In the iodometric estimation in laboratory, which process is involved ?

1 \(C{r^2}{O_7}^{2 - } + {H^ + } + {I^ - } \to 2C{r^{3 + }} + {I_2},\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}{O_6}^{2 - } + {I^ - }\)
2 \(Mn{O_4}^ - + {H^ + } + {I^ - } \to Mn{O_2} + {I_2}\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}{O_6}^{2 - } + {I^ - }\)
3 \(Mn{O_4}^ - + O{H^ - } + {I^ - } \to Mn{O_2} + {I_2}\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}O_6^{2 - } + {I^ - }\)
4 \(C{r_2}{O_7}^{2 - } + O{H^ - } + {I^ - } \to 2C{r^{3 + }} + {I_2}\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}O_6^{2 - } + {I^ - }\)
PRACTICAL CHEMISTRY

37507 What is the volume of \(0.1\) \(N-HCl\) required to react completely with \(1.0 \,gm\) of pure calcium carbonate.......\(c{m^3}\)

1 \(100\)
2 \(150\)
3 \(250\)
4 \(200\)
PRACTICAL CHEMISTRY

37508 The weight of a residue obtained by heating \(2.76 \,g\) of silver carbonate is......\(g\)

1 \(2.76\)
2 \(2.98\)
3 \(2.16\)
4 \(2.44 \)
PRACTICAL CHEMISTRY

37509 What is the molarity of \({H_2}S{O_4}\) solution if \(25\, ml\) is exactly neutralised with \(32.63\, ml\) of \(0.164 \,M\), \(NaOH\)

1 \(0.107 \,M\)
2 \(0.126 \,M\)
3 \(0.214 \,M\)
4 \(-0.428 \,M\)
Join With Us for More Updates
PRACTICAL CHEMISTRY

37506 In the iodometric estimation in laboratory, which process is involved ?

1 \(C{r^2}{O_7}^{2 - } + {H^ + } + {I^ - } \to 2C{r^{3 + }} + {I_2},\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}{O_6}^{2 - } + {I^ - }\)
2 \(Mn{O_4}^ - + {H^ + } + {I^ - } \to Mn{O_2} + {I_2}\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}{O_6}^{2 - } + {I^ - }\)
3 \(Mn{O_4}^ - + O{H^ - } + {I^ - } \to Mn{O_2} + {I_2}\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}O_6^{2 - } + {I^ - }\)
4 \(C{r_2}{O_7}^{2 - } + O{H^ - } + {I^ - } \to 2C{r^{3 + }} + {I_2}\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}O_6^{2 - } + {I^ - }\)
PRACTICAL CHEMISTRY

37507 What is the volume of \(0.1\) \(N-HCl\) required to react completely with \(1.0 \,gm\) of pure calcium carbonate.......\(c{m^3}\)

1 \(100\)
2 \(150\)
3 \(250\)
4 \(200\)
PRACTICAL CHEMISTRY

37508 The weight of a residue obtained by heating \(2.76 \,g\) of silver carbonate is......\(g\)

1 \(2.76\)
2 \(2.98\)
3 \(2.16\)
4 \(2.44 \)
PRACTICAL CHEMISTRY

37509 What is the molarity of \({H_2}S{O_4}\) solution if \(25\, ml\) is exactly neutralised with \(32.63\, ml\) of \(0.164 \,M\), \(NaOH\)

1 \(0.107 \,M\)
2 \(0.126 \,M\)
3 \(0.214 \,M\)
4 \(-0.428 \,M\)
For More Updates join with Us
PRACTICAL CHEMISTRY

37506 In the iodometric estimation in laboratory, which process is involved ?

1 \(C{r^2}{O_7}^{2 - } + {H^ + } + {I^ - } \to 2C{r^{3 + }} + {I_2},\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}{O_6}^{2 - } + {I^ - }\)
2 \(Mn{O_4}^ - + {H^ + } + {I^ - } \to Mn{O_2} + {I_2}\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}{O_6}^{2 - } + {I^ - }\)
3 \(Mn{O_4}^ - + O{H^ - } + {I^ - } \to Mn{O_2} + {I_2}\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}O_6^{2 - } + {I^ - }\)
4 \(C{r_2}{O_7}^{2 - } + O{H^ - } + {I^ - } \to 2C{r^{3 + }} + {I_2}\),
\({I_2} + {S_2}{O_3}^{2 - } \to {S_4}O_6^{2 - } + {I^ - }\)
PRACTICAL CHEMISTRY

37507 What is the volume of \(0.1\) \(N-HCl\) required to react completely with \(1.0 \,gm\) of pure calcium carbonate.......\(c{m^3}\)

1 \(100\)
2 \(150\)
3 \(250\)
4 \(200\)
PRACTICAL CHEMISTRY

37508 The weight of a residue obtained by heating \(2.76 \,g\) of silver carbonate is......\(g\)

1 \(2.76\)
2 \(2.98\)
3 \(2.16\)
4 \(2.44 \)
PRACTICAL CHEMISTRY

37509 What is the molarity of \({H_2}S{O_4}\) solution if \(25\, ml\) is exactly neutralised with \(32.63\, ml\) of \(0.164 \,M\), \(NaOH\)

1 \(0.107 \,M\)
2 \(0.126 \,M\)
3 \(0.214 \,M\)
4 \(-0.428 \,M\)
NEET DIGITAL LIBRARY