316736
The correct statements about \(\mathrm{HNO}_{3}\) are I. \(\mathrm{HNO}_{3}\) acts as a dehydrating agent II. The proteins are converted into xanthoproteins III. \(\mathrm{HNO}_{3}\) acts as an oxidising agent IV. It exists in two canonical forms The correct option is
1 I, II and III
2 II, III and IV
3 I, III and IV
4 I, II and IV
Explanation:
\(\mathrm{HNO}_{3}\) is an oxidising not dehydrating agent.
CHXI11:THE P-BLOCK ELEMENTS
316737
Which of the following products will be obtained when copper metal is reacted with \(\mathrm{HNO}_{3}\) ?
1 \(\mathrm{NO}\) and \(\mathrm{N}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{NO}\) and \(\mathrm{NO}_{2}\)
3 \(\mathrm{NO}_{2}\) and \(\mathrm{N}_{2} \mathrm{O}_{5}\)
4 \(\mathrm{HNO}_{2}\) and \(\mathrm{N}_{2}\)
Explanation:
The products of copper reaction with \(\mathrm{HNO}_{3}\) depends upon the concentration of \(\mathrm{HNO}_{3}\) used. Copper metal reacts with dilute \(\mathrm{HNO}_{3}\) to form nitrogen (II) oxide (NO). \(\begin{aligned}& 3 \mathrm{Cu}+8 \mathrm{HNO}_{3}(\text { dil. }) \rightarrow \\& 3 \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}+2 \mathrm{NO}+4 \mathrm{H}_{2} \mathrm{O}\end{aligned}\) Copper metal reacts with conc. \(\mathrm{HNO}_{3}\) to form nitrogen (IV) oxide or nitrogen dioxide \(\left(\mathrm{NO}_{2}\right)\).\(\mathrm{Cu}+4 \mathrm{HNO}_{3}\) (conc.) \(\rightarrow \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}+2 \mathrm{NO}_{2}+2 \mathrm{H}_{2} \mathrm{O}\)
AIIMS - 2018
CHXI11:THE P-BLOCK ELEMENTS
316738
Assertion : \(\mathrm{HNO}_{3}\) is a stronger acid than \(\mathrm{HNO}_{2}\). Reason : In \(\mathrm{HNO}_{3}\) there are two nitrogen oxygen bonds while in \(\mathrm{HNO}_{2}\) it is only one.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The acid strength of \(\mathrm{HNO}_{3}\) is higher than that of \(\mathrm{HNO}_{2}\) due to the higher oxidation state of nitrogen ( +5 in \(\mathrm{HNO}_{3}\) compared to +3 in \(\mathrm{HNO}_{2}\) ). Therefore, option (3) is correct.
316736
The correct statements about \(\mathrm{HNO}_{3}\) are I. \(\mathrm{HNO}_{3}\) acts as a dehydrating agent II. The proteins are converted into xanthoproteins III. \(\mathrm{HNO}_{3}\) acts as an oxidising agent IV. It exists in two canonical forms The correct option is
1 I, II and III
2 II, III and IV
3 I, III and IV
4 I, II and IV
Explanation:
\(\mathrm{HNO}_{3}\) is an oxidising not dehydrating agent.
CHXI11:THE P-BLOCK ELEMENTS
316737
Which of the following products will be obtained when copper metal is reacted with \(\mathrm{HNO}_{3}\) ?
1 \(\mathrm{NO}\) and \(\mathrm{N}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{NO}\) and \(\mathrm{NO}_{2}\)
3 \(\mathrm{NO}_{2}\) and \(\mathrm{N}_{2} \mathrm{O}_{5}\)
4 \(\mathrm{HNO}_{2}\) and \(\mathrm{N}_{2}\)
Explanation:
The products of copper reaction with \(\mathrm{HNO}_{3}\) depends upon the concentration of \(\mathrm{HNO}_{3}\) used. Copper metal reacts with dilute \(\mathrm{HNO}_{3}\) to form nitrogen (II) oxide (NO). \(\begin{aligned}& 3 \mathrm{Cu}+8 \mathrm{HNO}_{3}(\text { dil. }) \rightarrow \\& 3 \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}+2 \mathrm{NO}+4 \mathrm{H}_{2} \mathrm{O}\end{aligned}\) Copper metal reacts with conc. \(\mathrm{HNO}_{3}\) to form nitrogen (IV) oxide or nitrogen dioxide \(\left(\mathrm{NO}_{2}\right)\).\(\mathrm{Cu}+4 \mathrm{HNO}_{3}\) (conc.) \(\rightarrow \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}+2 \mathrm{NO}_{2}+2 \mathrm{H}_{2} \mathrm{O}\)
AIIMS - 2018
CHXI11:THE P-BLOCK ELEMENTS
316738
Assertion : \(\mathrm{HNO}_{3}\) is a stronger acid than \(\mathrm{HNO}_{2}\). Reason : In \(\mathrm{HNO}_{3}\) there are two nitrogen oxygen bonds while in \(\mathrm{HNO}_{2}\) it is only one.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The acid strength of \(\mathrm{HNO}_{3}\) is higher than that of \(\mathrm{HNO}_{2}\) due to the higher oxidation state of nitrogen ( +5 in \(\mathrm{HNO}_{3}\) compared to +3 in \(\mathrm{HNO}_{2}\) ). Therefore, option (3) is correct.
316736
The correct statements about \(\mathrm{HNO}_{3}\) are I. \(\mathrm{HNO}_{3}\) acts as a dehydrating agent II. The proteins are converted into xanthoproteins III. \(\mathrm{HNO}_{3}\) acts as an oxidising agent IV. It exists in two canonical forms The correct option is
1 I, II and III
2 II, III and IV
3 I, III and IV
4 I, II and IV
Explanation:
\(\mathrm{HNO}_{3}\) is an oxidising not dehydrating agent.
CHXI11:THE P-BLOCK ELEMENTS
316737
Which of the following products will be obtained when copper metal is reacted with \(\mathrm{HNO}_{3}\) ?
1 \(\mathrm{NO}\) and \(\mathrm{N}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{NO}\) and \(\mathrm{NO}_{2}\)
3 \(\mathrm{NO}_{2}\) and \(\mathrm{N}_{2} \mathrm{O}_{5}\)
4 \(\mathrm{HNO}_{2}\) and \(\mathrm{N}_{2}\)
Explanation:
The products of copper reaction with \(\mathrm{HNO}_{3}\) depends upon the concentration of \(\mathrm{HNO}_{3}\) used. Copper metal reacts with dilute \(\mathrm{HNO}_{3}\) to form nitrogen (II) oxide (NO). \(\begin{aligned}& 3 \mathrm{Cu}+8 \mathrm{HNO}_{3}(\text { dil. }) \rightarrow \\& 3 \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}+2 \mathrm{NO}+4 \mathrm{H}_{2} \mathrm{O}\end{aligned}\) Copper metal reacts with conc. \(\mathrm{HNO}_{3}\) to form nitrogen (IV) oxide or nitrogen dioxide \(\left(\mathrm{NO}_{2}\right)\).\(\mathrm{Cu}+4 \mathrm{HNO}_{3}\) (conc.) \(\rightarrow \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}+2 \mathrm{NO}_{2}+2 \mathrm{H}_{2} \mathrm{O}\)
AIIMS - 2018
CHXI11:THE P-BLOCK ELEMENTS
316738
Assertion : \(\mathrm{HNO}_{3}\) is a stronger acid than \(\mathrm{HNO}_{2}\). Reason : In \(\mathrm{HNO}_{3}\) there are two nitrogen oxygen bonds while in \(\mathrm{HNO}_{2}\) it is only one.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The acid strength of \(\mathrm{HNO}_{3}\) is higher than that of \(\mathrm{HNO}_{2}\) due to the higher oxidation state of nitrogen ( +5 in \(\mathrm{HNO}_{3}\) compared to +3 in \(\mathrm{HNO}_{2}\) ). Therefore, option (3) is correct.
316736
The correct statements about \(\mathrm{HNO}_{3}\) are I. \(\mathrm{HNO}_{3}\) acts as a dehydrating agent II. The proteins are converted into xanthoproteins III. \(\mathrm{HNO}_{3}\) acts as an oxidising agent IV. It exists in two canonical forms The correct option is
1 I, II and III
2 II, III and IV
3 I, III and IV
4 I, II and IV
Explanation:
\(\mathrm{HNO}_{3}\) is an oxidising not dehydrating agent.
CHXI11:THE P-BLOCK ELEMENTS
316737
Which of the following products will be obtained when copper metal is reacted with \(\mathrm{HNO}_{3}\) ?
1 \(\mathrm{NO}\) and \(\mathrm{N}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{NO}\) and \(\mathrm{NO}_{2}\)
3 \(\mathrm{NO}_{2}\) and \(\mathrm{N}_{2} \mathrm{O}_{5}\)
4 \(\mathrm{HNO}_{2}\) and \(\mathrm{N}_{2}\)
Explanation:
The products of copper reaction with \(\mathrm{HNO}_{3}\) depends upon the concentration of \(\mathrm{HNO}_{3}\) used. Copper metal reacts with dilute \(\mathrm{HNO}_{3}\) to form nitrogen (II) oxide (NO). \(\begin{aligned}& 3 \mathrm{Cu}+8 \mathrm{HNO}_{3}(\text { dil. }) \rightarrow \\& 3 \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}+2 \mathrm{NO}+4 \mathrm{H}_{2} \mathrm{O}\end{aligned}\) Copper metal reacts with conc. \(\mathrm{HNO}_{3}\) to form nitrogen (IV) oxide or nitrogen dioxide \(\left(\mathrm{NO}_{2}\right)\).\(\mathrm{Cu}+4 \mathrm{HNO}_{3}\) (conc.) \(\rightarrow \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}+2 \mathrm{NO}_{2}+2 \mathrm{H}_{2} \mathrm{O}\)
AIIMS - 2018
CHXI11:THE P-BLOCK ELEMENTS
316738
Assertion : \(\mathrm{HNO}_{3}\) is a stronger acid than \(\mathrm{HNO}_{2}\). Reason : In \(\mathrm{HNO}_{3}\) there are two nitrogen oxygen bonds while in \(\mathrm{HNO}_{2}\) it is only one.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The acid strength of \(\mathrm{HNO}_{3}\) is higher than that of \(\mathrm{HNO}_{2}\) due to the higher oxidation state of nitrogen ( +5 in \(\mathrm{HNO}_{3}\) compared to +3 in \(\mathrm{HNO}_{2}\) ). Therefore, option (3) is correct.
