11. THE P-BLOCK ELEMENTS
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11. THE P-BLOCK ELEMENTS

190005 Which reactions can be used to prepare diborane\(I.\,\,NaBH_4 + BF_3\) (in ether) \(\to\)\(II.\,\, NaBH_4 + I_2 \to\)\(III.\,\, BF_3 + NaH \to\)

1 \(I, \,III\)
2 \(I, \,II\)
3 \(II, \,III\)
4 \(I, \,II\) and \(III\)
11. THE P-BLOCK ELEMENTS

190006 \(N{a_2}{B_4}{O_7}.10{H_2}O\,\xrightarrow{\Delta }\) \(NaB{O_2} + \,(A)\, + \,{H_{2\,}}O(A)\, + \) \(MnO\,\xrightarrow{\Delta }\,(B),\,(A)\) and \((B)\) are

1 \(Na_3BO_3, Mn_3(BO_3)_2\)
2 \(Na_2(BO_2)_2, Mn(BO_2)_2\)
3 \(B_2O_3, Mn(BO_2)_2\)
4 none is correct
11. THE P-BLOCK ELEMENTS

190007 Pick out the correct statement

1 \(SiC\) is a covalent carbide, on hydrolysis it's give \(Si(OH)_4\) and \(O_2\)
2 \(Al_4C_3\) is a ionic carbide, on hydrolysis it's give \(C_3H_4\)
3 \(Be_2C\) is a ionic carbide, on hydrolysis it's give methane gas
4 \((B)\) and \((C)\) both
11. THE P-BLOCK ELEMENTS

190008 The silicates which contain \(Si_2O_7^{-6}\) units are called

1 Cyclic silicates
2 Chain silicates
3 Pyro silicates
4 Ortho silicates
11. THE P-BLOCK ELEMENTS

190009 Consider following statements\((a)\) \(R_2SiO\) is repeating unit of linear silicones\((b)\) \(R\) \(SiCl_3\) on hydrolysis followed by dehydration gives linear silicones\((c)\) Silicones can be used as heat insulator\((d)\) Silica is soluble in \(HF\)The correct statement\((s)\) is/are

1 \(a, b, c\) and \(d\)
2 \(a, c\) and \(d\)
3 \(a, b\) and \(d\)
4 \(a\) and \(c\)
NEET DIGITAL LIBRARY
11. THE P-BLOCK ELEMENTS

190005 Which reactions can be used to prepare diborane\(I.\,\,NaBH_4 + BF_3\) (in ether) \(\to\)\(II.\,\, NaBH_4 + I_2 \to\)\(III.\,\, BF_3 + NaH \to\)

1 \(I, \,III\)
2 \(I, \,II\)
3 \(II, \,III\)
4 \(I, \,II\) and \(III\)
11. THE P-BLOCK ELEMENTS

190006 \(N{a_2}{B_4}{O_7}.10{H_2}O\,\xrightarrow{\Delta }\) \(NaB{O_2} + \,(A)\, + \,{H_{2\,}}O(A)\, + \) \(MnO\,\xrightarrow{\Delta }\,(B),\,(A)\) and \((B)\) are

1 \(Na_3BO_3, Mn_3(BO_3)_2\)
2 \(Na_2(BO_2)_2, Mn(BO_2)_2\)
3 \(B_2O_3, Mn(BO_2)_2\)
4 none is correct
11. THE P-BLOCK ELEMENTS

190007 Pick out the correct statement

1 \(SiC\) is a covalent carbide, on hydrolysis it's give \(Si(OH)_4\) and \(O_2\)
2 \(Al_4C_3\) is a ionic carbide, on hydrolysis it's give \(C_3H_4\)
3 \(Be_2C\) is a ionic carbide, on hydrolysis it's give methane gas
4 \((B)\) and \((C)\) both
11. THE P-BLOCK ELEMENTS

190008 The silicates which contain \(Si_2O_7^{-6}\) units are called

1 Cyclic silicates
2 Chain silicates
3 Pyro silicates
4 Ortho silicates
11. THE P-BLOCK ELEMENTS

190009 Consider following statements\((a)\) \(R_2SiO\) is repeating unit of linear silicones\((b)\) \(R\) \(SiCl_3\) on hydrolysis followed by dehydration gives linear silicones\((c)\) Silicones can be used as heat insulator\((d)\) Silica is soluble in \(HF\)The correct statement\((s)\) is/are

1 \(a, b, c\) and \(d\)
2 \(a, c\) and \(d\)
3 \(a, b\) and \(d\)
4 \(a\) and \(c\)
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11. THE P-BLOCK ELEMENTS

190005 Which reactions can be used to prepare diborane\(I.\,\,NaBH_4 + BF_3\) (in ether) \(\to\)\(II.\,\, NaBH_4 + I_2 \to\)\(III.\,\, BF_3 + NaH \to\)

1 \(I, \,III\)
2 \(I, \,II\)
3 \(II, \,III\)
4 \(I, \,II\) and \(III\)
11. THE P-BLOCK ELEMENTS

190006 \(N{a_2}{B_4}{O_7}.10{H_2}O\,\xrightarrow{\Delta }\) \(NaB{O_2} + \,(A)\, + \,{H_{2\,}}O(A)\, + \) \(MnO\,\xrightarrow{\Delta }\,(B),\,(A)\) and \((B)\) are

1 \(Na_3BO_3, Mn_3(BO_3)_2\)
2 \(Na_2(BO_2)_2, Mn(BO_2)_2\)
3 \(B_2O_3, Mn(BO_2)_2\)
4 none is correct
11. THE P-BLOCK ELEMENTS

190007 Pick out the correct statement

1 \(SiC\) is a covalent carbide, on hydrolysis it's give \(Si(OH)_4\) and \(O_2\)
2 \(Al_4C_3\) is a ionic carbide, on hydrolysis it's give \(C_3H_4\)
3 \(Be_2C\) is a ionic carbide, on hydrolysis it's give methane gas
4 \((B)\) and \((C)\) both
11. THE P-BLOCK ELEMENTS

190008 The silicates which contain \(Si_2O_7^{-6}\) units are called

1 Cyclic silicates
2 Chain silicates
3 Pyro silicates
4 Ortho silicates
11. THE P-BLOCK ELEMENTS

190009 Consider following statements\((a)\) \(R_2SiO\) is repeating unit of linear silicones\((b)\) \(R\) \(SiCl_3\) on hydrolysis followed by dehydration gives linear silicones\((c)\) Silicones can be used as heat insulator\((d)\) Silica is soluble in \(HF\)The correct statement\((s)\) is/are

1 \(a, b, c\) and \(d\)
2 \(a, c\) and \(d\)
3 \(a, b\) and \(d\)
4 \(a\) and \(c\)
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11. THE P-BLOCK ELEMENTS

190005 Which reactions can be used to prepare diborane\(I.\,\,NaBH_4 + BF_3\) (in ether) \(\to\)\(II.\,\, NaBH_4 + I_2 \to\)\(III.\,\, BF_3 + NaH \to\)

1 \(I, \,III\)
2 \(I, \,II\)
3 \(II, \,III\)
4 \(I, \,II\) and \(III\)
11. THE P-BLOCK ELEMENTS

190006 \(N{a_2}{B_4}{O_7}.10{H_2}O\,\xrightarrow{\Delta }\) \(NaB{O_2} + \,(A)\, + \,{H_{2\,}}O(A)\, + \) \(MnO\,\xrightarrow{\Delta }\,(B),\,(A)\) and \((B)\) are

1 \(Na_3BO_3, Mn_3(BO_3)_2\)
2 \(Na_2(BO_2)_2, Mn(BO_2)_2\)
3 \(B_2O_3, Mn(BO_2)_2\)
4 none is correct
11. THE P-BLOCK ELEMENTS

190007 Pick out the correct statement

1 \(SiC\) is a covalent carbide, on hydrolysis it's give \(Si(OH)_4\) and \(O_2\)
2 \(Al_4C_3\) is a ionic carbide, on hydrolysis it's give \(C_3H_4\)
3 \(Be_2C\) is a ionic carbide, on hydrolysis it's give methane gas
4 \((B)\) and \((C)\) both
11. THE P-BLOCK ELEMENTS

190008 The silicates which contain \(Si_2O_7^{-6}\) units are called

1 Cyclic silicates
2 Chain silicates
3 Pyro silicates
4 Ortho silicates
11. THE P-BLOCK ELEMENTS

190009 Consider following statements\((a)\) \(R_2SiO\) is repeating unit of linear silicones\((b)\) \(R\) \(SiCl_3\) on hydrolysis followed by dehydration gives linear silicones\((c)\) Silicones can be used as heat insulator\((d)\) Silica is soluble in \(HF\)The correct statement\((s)\) is/are

1 \(a, b, c\) and \(d\)
2 \(a, c\) and \(d\)
3 \(a, b\) and \(d\)
4 \(a\) and \(c\)
NEET DIGITAL LIBRARY
11. THE P-BLOCK ELEMENTS

190005 Which reactions can be used to prepare diborane\(I.\,\,NaBH_4 + BF_3\) (in ether) \(\to\)\(II.\,\, NaBH_4 + I_2 \to\)\(III.\,\, BF_3 + NaH \to\)

1 \(I, \,III\)
2 \(I, \,II\)
3 \(II, \,III\)
4 \(I, \,II\) and \(III\)
11. THE P-BLOCK ELEMENTS

190006 \(N{a_2}{B_4}{O_7}.10{H_2}O\,\xrightarrow{\Delta }\) \(NaB{O_2} + \,(A)\, + \,{H_{2\,}}O(A)\, + \) \(MnO\,\xrightarrow{\Delta }\,(B),\,(A)\) and \((B)\) are

1 \(Na_3BO_3, Mn_3(BO_3)_2\)
2 \(Na_2(BO_2)_2, Mn(BO_2)_2\)
3 \(B_2O_3, Mn(BO_2)_2\)
4 none is correct
11. THE P-BLOCK ELEMENTS

190007 Pick out the correct statement

1 \(SiC\) is a covalent carbide, on hydrolysis it's give \(Si(OH)_4\) and \(O_2\)
2 \(Al_4C_3\) is a ionic carbide, on hydrolysis it's give \(C_3H_4\)
3 \(Be_2C\) is a ionic carbide, on hydrolysis it's give methane gas
4 \((B)\) and \((C)\) both
11. THE P-BLOCK ELEMENTS

190008 The silicates which contain \(Si_2O_7^{-6}\) units are called

1 Cyclic silicates
2 Chain silicates
3 Pyro silicates
4 Ortho silicates
11. THE P-BLOCK ELEMENTS

190009 Consider following statements\((a)\) \(R_2SiO\) is repeating unit of linear silicones\((b)\) \(R\) \(SiCl_3\) on hydrolysis followed by dehydration gives linear silicones\((c)\) Silicones can be used as heat insulator\((d)\) Silica is soluble in \(HF\)The correct statement\((s)\) is/are

1 \(a, b, c\) and \(d\)
2 \(a, c\) and \(d\)
3 \(a, b\) and \(d\)
4 \(a\) and \(c\)