316847
Assertion : Phosphoric acid has no reducing properties Reason : Phosphoric acid does not contain \(\mathrm{P}-\mathrm{H}\) bond.
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:
Phosphoric acid is Due to the absence of \(\mathrm{P}-\mathrm{H}\) bonds within its structure, phosphoric acid does not exhibit reducing properties. So option (1) is correct
CHXI11:THE P-BLOCK ELEMENTS
316848
Sodium pyrophosphate is represented by which of the following formula?
Sodium pyrophosphate is represented by \(\mathrm{Na}_{4} \mathrm{P}_{2} \mathrm{O}_{7}\). It is sodium salt of pyrophosphoric acid \(\left(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{7}\right)\), which may be considered to be made up by two molecules of ortho phosphoric acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{4}\right)\), eliminating one molecule of \(\mathrm{H}_{2} \mathrm{O}\).
CHXI11:THE P-BLOCK ELEMENTS
316849
What is the basicity of orthophosphorous acid?
1 One
2 Two
3 Three
4 Four
Explanation:
The structure of ortho phosphorous acid will be Here, two - OH groups are directly attached with \(\mathrm{P}\)-atom, hence the basicity of the compound is two.
CHXI11:THE P-BLOCK ELEMENTS
316850
Match the oxides given in column I with its nature given in column II and choose correct option. Column I Column II A Hypophosphorous acid P +1 B Orthophosphophoric acid Q +2 C Hypophosphoric acid R +3 D Phosphorous acid S +4 T +5
1 A - P, B - T, C - S, D - R
2 A - T, B - P, C - S, D - R
3 A - R, B - P, C - S, D - T
4 A - P, B - S, C - T, D - R
Explanation:
\(\mathrm{H}_{3} \mathrm{PO}_{2} \quad\) Oxidation number of \(\mathrm{P}=+1\) \(\mathrm{H}_{3} \mathrm{PO}_{4} \quad\) Oxidation number of \(\mathrm{P}=+5\) \(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{6} \quad\) Oxidation number of \(\mathrm{P}=+4\) \(\mathrm{H}_{3} \mathrm{PO}_{3} \quad\) Oxidation number of \(\mathrm{P}=+3\)
JEE - 2021
CHXI11:THE P-BLOCK ELEMENTS
316851
Which of the following acids form three series of salts?
316847
Assertion : Phosphoric acid has no reducing properties Reason : Phosphoric acid does not contain \(\mathrm{P}-\mathrm{H}\) bond.
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:
Phosphoric acid is Due to the absence of \(\mathrm{P}-\mathrm{H}\) bonds within its structure, phosphoric acid does not exhibit reducing properties. So option (1) is correct
CHXI11:THE P-BLOCK ELEMENTS
316848
Sodium pyrophosphate is represented by which of the following formula?
Sodium pyrophosphate is represented by \(\mathrm{Na}_{4} \mathrm{P}_{2} \mathrm{O}_{7}\). It is sodium salt of pyrophosphoric acid \(\left(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{7}\right)\), which may be considered to be made up by two molecules of ortho phosphoric acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{4}\right)\), eliminating one molecule of \(\mathrm{H}_{2} \mathrm{O}\).
CHXI11:THE P-BLOCK ELEMENTS
316849
What is the basicity of orthophosphorous acid?
1 One
2 Two
3 Three
4 Four
Explanation:
The structure of ortho phosphorous acid will be Here, two - OH groups are directly attached with \(\mathrm{P}\)-atom, hence the basicity of the compound is two.
CHXI11:THE P-BLOCK ELEMENTS
316850
Match the oxides given in column I with its nature given in column II and choose correct option. Column I Column II A Hypophosphorous acid P +1 B Orthophosphophoric acid Q +2 C Hypophosphoric acid R +3 D Phosphorous acid S +4 T +5
1 A - P, B - T, C - S, D - R
2 A - T, B - P, C - S, D - R
3 A - R, B - P, C - S, D - T
4 A - P, B - S, C - T, D - R
Explanation:
\(\mathrm{H}_{3} \mathrm{PO}_{2} \quad\) Oxidation number of \(\mathrm{P}=+1\) \(\mathrm{H}_{3} \mathrm{PO}_{4} \quad\) Oxidation number of \(\mathrm{P}=+5\) \(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{6} \quad\) Oxidation number of \(\mathrm{P}=+4\) \(\mathrm{H}_{3} \mathrm{PO}_{3} \quad\) Oxidation number of \(\mathrm{P}=+3\)
JEE - 2021
CHXI11:THE P-BLOCK ELEMENTS
316851
Which of the following acids form three series of salts?
316847
Assertion : Phosphoric acid has no reducing properties Reason : Phosphoric acid does not contain \(\mathrm{P}-\mathrm{H}\) bond.
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:
Phosphoric acid is Due to the absence of \(\mathrm{P}-\mathrm{H}\) bonds within its structure, phosphoric acid does not exhibit reducing properties. So option (1) is correct
CHXI11:THE P-BLOCK ELEMENTS
316848
Sodium pyrophosphate is represented by which of the following formula?
Sodium pyrophosphate is represented by \(\mathrm{Na}_{4} \mathrm{P}_{2} \mathrm{O}_{7}\). It is sodium salt of pyrophosphoric acid \(\left(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{7}\right)\), which may be considered to be made up by two molecules of ortho phosphoric acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{4}\right)\), eliminating one molecule of \(\mathrm{H}_{2} \mathrm{O}\).
CHXI11:THE P-BLOCK ELEMENTS
316849
What is the basicity of orthophosphorous acid?
1 One
2 Two
3 Three
4 Four
Explanation:
The structure of ortho phosphorous acid will be Here, two - OH groups are directly attached with \(\mathrm{P}\)-atom, hence the basicity of the compound is two.
CHXI11:THE P-BLOCK ELEMENTS
316850
Match the oxides given in column I with its nature given in column II and choose correct option. Column I Column II A Hypophosphorous acid P +1 B Orthophosphophoric acid Q +2 C Hypophosphoric acid R +3 D Phosphorous acid S +4 T +5
1 A - P, B - T, C - S, D - R
2 A - T, B - P, C - S, D - R
3 A - R, B - P, C - S, D - T
4 A - P, B - S, C - T, D - R
Explanation:
\(\mathrm{H}_{3} \mathrm{PO}_{2} \quad\) Oxidation number of \(\mathrm{P}=+1\) \(\mathrm{H}_{3} \mathrm{PO}_{4} \quad\) Oxidation number of \(\mathrm{P}=+5\) \(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{6} \quad\) Oxidation number of \(\mathrm{P}=+4\) \(\mathrm{H}_{3} \mathrm{PO}_{3} \quad\) Oxidation number of \(\mathrm{P}=+3\)
JEE - 2021
CHXI11:THE P-BLOCK ELEMENTS
316851
Which of the following acids form three series of salts?
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXI11:THE P-BLOCK ELEMENTS
316847
Assertion : Phosphoric acid has no reducing properties Reason : Phosphoric acid does not contain \(\mathrm{P}-\mathrm{H}\) bond.
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:
Phosphoric acid is Due to the absence of \(\mathrm{P}-\mathrm{H}\) bonds within its structure, phosphoric acid does not exhibit reducing properties. So option (1) is correct
CHXI11:THE P-BLOCK ELEMENTS
316848
Sodium pyrophosphate is represented by which of the following formula?
Sodium pyrophosphate is represented by \(\mathrm{Na}_{4} \mathrm{P}_{2} \mathrm{O}_{7}\). It is sodium salt of pyrophosphoric acid \(\left(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{7}\right)\), which may be considered to be made up by two molecules of ortho phosphoric acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{4}\right)\), eliminating one molecule of \(\mathrm{H}_{2} \mathrm{O}\).
CHXI11:THE P-BLOCK ELEMENTS
316849
What is the basicity of orthophosphorous acid?
1 One
2 Two
3 Three
4 Four
Explanation:
The structure of ortho phosphorous acid will be Here, two - OH groups are directly attached with \(\mathrm{P}\)-atom, hence the basicity of the compound is two.
CHXI11:THE P-BLOCK ELEMENTS
316850
Match the oxides given in column I with its nature given in column II and choose correct option. Column I Column II A Hypophosphorous acid P +1 B Orthophosphophoric acid Q +2 C Hypophosphoric acid R +3 D Phosphorous acid S +4 T +5
1 A - P, B - T, C - S, D - R
2 A - T, B - P, C - S, D - R
3 A - R, B - P, C - S, D - T
4 A - P, B - S, C - T, D - R
Explanation:
\(\mathrm{H}_{3} \mathrm{PO}_{2} \quad\) Oxidation number of \(\mathrm{P}=+1\) \(\mathrm{H}_{3} \mathrm{PO}_{4} \quad\) Oxidation number of \(\mathrm{P}=+5\) \(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{6} \quad\) Oxidation number of \(\mathrm{P}=+4\) \(\mathrm{H}_{3} \mathrm{PO}_{3} \quad\) Oxidation number of \(\mathrm{P}=+3\)
JEE - 2021
CHXI11:THE P-BLOCK ELEMENTS
316851
Which of the following acids form three series of salts?
316847
Assertion : Phosphoric acid has no reducing properties Reason : Phosphoric acid does not contain \(\mathrm{P}-\mathrm{H}\) bond.
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:
Phosphoric acid is Due to the absence of \(\mathrm{P}-\mathrm{H}\) bonds within its structure, phosphoric acid does not exhibit reducing properties. So option (1) is correct
CHXI11:THE P-BLOCK ELEMENTS
316848
Sodium pyrophosphate is represented by which of the following formula?
Sodium pyrophosphate is represented by \(\mathrm{Na}_{4} \mathrm{P}_{2} \mathrm{O}_{7}\). It is sodium salt of pyrophosphoric acid \(\left(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{7}\right)\), which may be considered to be made up by two molecules of ortho phosphoric acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{4}\right)\), eliminating one molecule of \(\mathrm{H}_{2} \mathrm{O}\).
CHXI11:THE P-BLOCK ELEMENTS
316849
What is the basicity of orthophosphorous acid?
1 One
2 Two
3 Three
4 Four
Explanation:
The structure of ortho phosphorous acid will be Here, two - OH groups are directly attached with \(\mathrm{P}\)-atom, hence the basicity of the compound is two.
CHXI11:THE P-BLOCK ELEMENTS
316850
Match the oxides given in column I with its nature given in column II and choose correct option. Column I Column II A Hypophosphorous acid P +1 B Orthophosphophoric acid Q +2 C Hypophosphoric acid R +3 D Phosphorous acid S +4 T +5
1 A - P, B - T, C - S, D - R
2 A - T, B - P, C - S, D - R
3 A - R, B - P, C - S, D - T
4 A - P, B - S, C - T, D - R
Explanation:
\(\mathrm{H}_{3} \mathrm{PO}_{2} \quad\) Oxidation number of \(\mathrm{P}=+1\) \(\mathrm{H}_{3} \mathrm{PO}_{4} \quad\) Oxidation number of \(\mathrm{P}=+5\) \(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{6} \quad\) Oxidation number of \(\mathrm{P}=+4\) \(\mathrm{H}_{3} \mathrm{PO}_{3} \quad\) Oxidation number of \(\mathrm{P}=+3\)
JEE - 2021
CHXI11:THE P-BLOCK ELEMENTS
316851
Which of the following acids form three series of salts?
