316777
The total number of atoms in a molecule of nitrogen sesquioxide is ____.
1 2
2 5
3 7
4 1
Explanation:
Nitrogen sesquioxide is \({\mathrm{\mathrm{N}_{2} \mathrm{O}_{3}}}\). Hence, there are 5 atoms in one molecule of nitrogen sesquioxide.
CHXI11:THE P-BLOCK ELEMENTS
316778
Liquid ammonia is used in refrigeration due to its
1 High dipole moment
2 Basicity
3 Stability
4 High heat of vapourisation
Explanation:
Liquid \(\mathrm{NH}_{3}\) has high heat of vaporisation and hence it is used in refrigeration.
CHXI11:THE P-BLOCK ELEMENTS
316779
Match the column I with column II and choose the correct option. Column I Column II A Used in manufacture of calcium cyanamie P Ammonia B used in manufacture in nitric acid Q Nitric acid C Used in pickling of stainless steel R Dinitrogen
1 A - R, B - P, C - Q
2 A -P, B - R, C - Q
3 A - P, B - Q, C - P
4 A - Q, B - P, C - R
Explanation:
(A) \(\mathrm{CaC}_{2}+\mathrm{N}_{2} \rightarrow \mathrm{CaCN}_{2}\) [Calcium cyanamide] (B) In the manufacture of \(\mathrm{HNO}_{3}\), first step is involved by \(\mathrm{NH}_{3}\) (C) \(\mathrm{HNO}_{3}\) is used in pickling of stainless steel So, the option (1) is correct
CHXI11:THE P-BLOCK ELEMENTS
316780
In which of the following, \(\mathrm{NH}_{3}\) is not used ?
1 Nessler's reagent
2 Group reagent for the analysis of IV group basic radical
3 Group reagent for the analysis of III group basic radical
4 Tollens' reagent
Explanation:
Nessler's reagent is alkaline solution of \(\mathrm{K}_{2} \mathrm{HgI}_{4}\) and is used in the detection of \(\mathrm{NH}_{4}^{+}\)in qualitative inorganic analysis.
316777
The total number of atoms in a molecule of nitrogen sesquioxide is ____.
1 2
2 5
3 7
4 1
Explanation:
Nitrogen sesquioxide is \({\mathrm{\mathrm{N}_{2} \mathrm{O}_{3}}}\). Hence, there are 5 atoms in one molecule of nitrogen sesquioxide.
CHXI11:THE P-BLOCK ELEMENTS
316778
Liquid ammonia is used in refrigeration due to its
1 High dipole moment
2 Basicity
3 Stability
4 High heat of vapourisation
Explanation:
Liquid \(\mathrm{NH}_{3}\) has high heat of vaporisation and hence it is used in refrigeration.
CHXI11:THE P-BLOCK ELEMENTS
316779
Match the column I with column II and choose the correct option. Column I Column II A Used in manufacture of calcium cyanamie P Ammonia B used in manufacture in nitric acid Q Nitric acid C Used in pickling of stainless steel R Dinitrogen
1 A - R, B - P, C - Q
2 A -P, B - R, C - Q
3 A - P, B - Q, C - P
4 A - Q, B - P, C - R
Explanation:
(A) \(\mathrm{CaC}_{2}+\mathrm{N}_{2} \rightarrow \mathrm{CaCN}_{2}\) [Calcium cyanamide] (B) In the manufacture of \(\mathrm{HNO}_{3}\), first step is involved by \(\mathrm{NH}_{3}\) (C) \(\mathrm{HNO}_{3}\) is used in pickling of stainless steel So, the option (1) is correct
CHXI11:THE P-BLOCK ELEMENTS
316780
In which of the following, \(\mathrm{NH}_{3}\) is not used ?
1 Nessler's reagent
2 Group reagent for the analysis of IV group basic radical
3 Group reagent for the analysis of III group basic radical
4 Tollens' reagent
Explanation:
Nessler's reagent is alkaline solution of \(\mathrm{K}_{2} \mathrm{HgI}_{4}\) and is used in the detection of \(\mathrm{NH}_{4}^{+}\)in qualitative inorganic analysis.
316777
The total number of atoms in a molecule of nitrogen sesquioxide is ____.
1 2
2 5
3 7
4 1
Explanation:
Nitrogen sesquioxide is \({\mathrm{\mathrm{N}_{2} \mathrm{O}_{3}}}\). Hence, there are 5 atoms in one molecule of nitrogen sesquioxide.
CHXI11:THE P-BLOCK ELEMENTS
316778
Liquid ammonia is used in refrigeration due to its
1 High dipole moment
2 Basicity
3 Stability
4 High heat of vapourisation
Explanation:
Liquid \(\mathrm{NH}_{3}\) has high heat of vaporisation and hence it is used in refrigeration.
CHXI11:THE P-BLOCK ELEMENTS
316779
Match the column I with column II and choose the correct option. Column I Column II A Used in manufacture of calcium cyanamie P Ammonia B used in manufacture in nitric acid Q Nitric acid C Used in pickling of stainless steel R Dinitrogen
1 A - R, B - P, C - Q
2 A -P, B - R, C - Q
3 A - P, B - Q, C - P
4 A - Q, B - P, C - R
Explanation:
(A) \(\mathrm{CaC}_{2}+\mathrm{N}_{2} \rightarrow \mathrm{CaCN}_{2}\) [Calcium cyanamide] (B) In the manufacture of \(\mathrm{HNO}_{3}\), first step is involved by \(\mathrm{NH}_{3}\) (C) \(\mathrm{HNO}_{3}\) is used in pickling of stainless steel So, the option (1) is correct
CHXI11:THE P-BLOCK ELEMENTS
316780
In which of the following, \(\mathrm{NH}_{3}\) is not used ?
1 Nessler's reagent
2 Group reagent for the analysis of IV group basic radical
3 Group reagent for the analysis of III group basic radical
4 Tollens' reagent
Explanation:
Nessler's reagent is alkaline solution of \(\mathrm{K}_{2} \mathrm{HgI}_{4}\) and is used in the detection of \(\mathrm{NH}_{4}^{+}\)in qualitative inorganic analysis.
316777
The total number of atoms in a molecule of nitrogen sesquioxide is ____.
1 2
2 5
3 7
4 1
Explanation:
Nitrogen sesquioxide is \({\mathrm{\mathrm{N}_{2} \mathrm{O}_{3}}}\). Hence, there are 5 atoms in one molecule of nitrogen sesquioxide.
CHXI11:THE P-BLOCK ELEMENTS
316778
Liquid ammonia is used in refrigeration due to its
1 High dipole moment
2 Basicity
3 Stability
4 High heat of vapourisation
Explanation:
Liquid \(\mathrm{NH}_{3}\) has high heat of vaporisation and hence it is used in refrigeration.
CHXI11:THE P-BLOCK ELEMENTS
316779
Match the column I with column II and choose the correct option. Column I Column II A Used in manufacture of calcium cyanamie P Ammonia B used in manufacture in nitric acid Q Nitric acid C Used in pickling of stainless steel R Dinitrogen
1 A - R, B - P, C - Q
2 A -P, B - R, C - Q
3 A - P, B - Q, C - P
4 A - Q, B - P, C - R
Explanation:
(A) \(\mathrm{CaC}_{2}+\mathrm{N}_{2} \rightarrow \mathrm{CaCN}_{2}\) [Calcium cyanamide] (B) In the manufacture of \(\mathrm{HNO}_{3}\), first step is involved by \(\mathrm{NH}_{3}\) (C) \(\mathrm{HNO}_{3}\) is used in pickling of stainless steel So, the option (1) is correct
CHXI11:THE P-BLOCK ELEMENTS
316780
In which of the following, \(\mathrm{NH}_{3}\) is not used ?
1 Nessler's reagent
2 Group reagent for the analysis of IV group basic radical
3 Group reagent for the analysis of III group basic radical
4 Tollens' reagent
Explanation:
Nessler's reagent is alkaline solution of \(\mathrm{K}_{2} \mathrm{HgI}_{4}\) and is used in the detection of \(\mathrm{NH}_{4}^{+}\)in qualitative inorganic analysis.
