Basicity of phosphorous acid \(= 2 (H_3PO_3)\) Perchloric acid has no peroxy linkage \((HClO_4)\) Solid \(SO_3\) have cyclic structure. \(B_3N_3H_6\) \(\left( {\mu = 0} \right)\) Borazine
11. THE P-BLOCK ELEMENTS
190016
Which of the following have \(3C-2e^-\) bond \(I.\) \(Al_2Cl_6\) \(II.\) \(B_2H_6\) \(III.\) \(Fe_2Cl_6\) \(IV.\) \(Si_2H_6\)
1 \(I, II\)
2 \(II, IV\)
3 Only \(II\)
4 \(I, III, IV\)
Explanation:
11. THE P-BLOCK ELEMENTS
190017
Borax is used as cleansing agent because on dissolving in water it gives
1 Alkaline solution
2 Acidic solution
3 Bleaching solution
4 Colloidal solution
Explanation:
Borax is \(Na_2B_4O_7.10H_2O\). It gives alkaline solution on dissolution in water as it is a salt of strong base and weak acid. \(Na_2B_4O_7 + 7H_2O \to 4H_3BO_3 + 2NaOH\)
Basicity of phosphorous acid \(= 2 (H_3PO_3)\) Perchloric acid has no peroxy linkage \((HClO_4)\) Solid \(SO_3\) have cyclic structure. \(B_3N_3H_6\) \(\left( {\mu = 0} \right)\) Borazine
11. THE P-BLOCK ELEMENTS
190016
Which of the following have \(3C-2e^-\) bond \(I.\) \(Al_2Cl_6\) \(II.\) \(B_2H_6\) \(III.\) \(Fe_2Cl_6\) \(IV.\) \(Si_2H_6\)
1 \(I, II\)
2 \(II, IV\)
3 Only \(II\)
4 \(I, III, IV\)
Explanation:
11. THE P-BLOCK ELEMENTS
190017
Borax is used as cleansing agent because on dissolving in water it gives
1 Alkaline solution
2 Acidic solution
3 Bleaching solution
4 Colloidal solution
Explanation:
Borax is \(Na_2B_4O_7.10H_2O\). It gives alkaline solution on dissolution in water as it is a salt of strong base and weak acid. \(Na_2B_4O_7 + 7H_2O \to 4H_3BO_3 + 2NaOH\)
Basicity of phosphorous acid \(= 2 (H_3PO_3)\) Perchloric acid has no peroxy linkage \((HClO_4)\) Solid \(SO_3\) have cyclic structure. \(B_3N_3H_6\) \(\left( {\mu = 0} \right)\) Borazine
11. THE P-BLOCK ELEMENTS
190016
Which of the following have \(3C-2e^-\) bond \(I.\) \(Al_2Cl_6\) \(II.\) \(B_2H_6\) \(III.\) \(Fe_2Cl_6\) \(IV.\) \(Si_2H_6\)
1 \(I, II\)
2 \(II, IV\)
3 Only \(II\)
4 \(I, III, IV\)
Explanation:
11. THE P-BLOCK ELEMENTS
190017
Borax is used as cleansing agent because on dissolving in water it gives
1 Alkaline solution
2 Acidic solution
3 Bleaching solution
4 Colloidal solution
Explanation:
Borax is \(Na_2B_4O_7.10H_2O\). It gives alkaline solution on dissolution in water as it is a salt of strong base and weak acid. \(Na_2B_4O_7 + 7H_2O \to 4H_3BO_3 + 2NaOH\)
Basicity of phosphorous acid \(= 2 (H_3PO_3)\) Perchloric acid has no peroxy linkage \((HClO_4)\) Solid \(SO_3\) have cyclic structure. \(B_3N_3H_6\) \(\left( {\mu = 0} \right)\) Borazine
11. THE P-BLOCK ELEMENTS
190016
Which of the following have \(3C-2e^-\) bond \(I.\) \(Al_2Cl_6\) \(II.\) \(B_2H_6\) \(III.\) \(Fe_2Cl_6\) \(IV.\) \(Si_2H_6\)
1 \(I, II\)
2 \(II, IV\)
3 Only \(II\)
4 \(I, III, IV\)
Explanation:
11. THE P-BLOCK ELEMENTS
190017
Borax is used as cleansing agent because on dissolving in water it gives
1 Alkaline solution
2 Acidic solution
3 Bleaching solution
4 Colloidal solution
Explanation:
Borax is \(Na_2B_4O_7.10H_2O\). It gives alkaline solution on dissolution in water as it is a salt of strong base and weak acid. \(Na_2B_4O_7 + 7H_2O \to 4H_3BO_3 + 2NaOH\)