11. THE P-BLOCK ELEMENTS
« First Topic in Last Topic in »
NEET DIGITAL LIBRARY
11. THE P-BLOCK ELEMENTS

189644 Which metal is protected by a layer of its own oxide

1 \(Al\)
2 \(Ag\)
3 \(Au\)
4 \(Fe\)
11. THE P-BLOCK ELEMENTS

190053 Given below are the statements about diborane.\((a)\) Diborane is prepared by the oxidation of \(\mathrm{NaBH}_{4}\) with \(\mathrm{I}_{2}\).\((b)\) Each boron atom is in sp \(^{2}\) hybridized state.\((c)\) Diborane has one bridged \(3\) centre\(-2-\)electron bond.\((d)\) Diborane is a planar molecule.The option with correct statement(s) is :

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

190054 Which one of the following compounds of Group\(-14\) elements is not known?

1 \(\left[\mathrm{GeCl}_{6}\right]^{2-}\)
2 \(\left[\mathrm{SiCl}_{6}\right]^{2-}\)
3 \(\left[\mathrm{Sn}(\mathrm{OH})_{6}\right]^{2-}\)
4 \(\left[\mathrm{SiF}_{6}\right]^{2-}\)
11. THE P-BLOCK ELEMENTS

189645 Aluminium is a self-preserving metal, because

1 It is not tarnished by air
2 A thin film of basic carbonate on its surface
3 A non-porous layer of oxide is formed on its surface
4 It is not affected by salt water
Join With Us for More Updates
11. THE P-BLOCK ELEMENTS

189644 Which metal is protected by a layer of its own oxide

1 \(Al\)
2 \(Ag\)
3 \(Au\)
4 \(Fe\)
11. THE P-BLOCK ELEMENTS

190053 Given below are the statements about diborane.\((a)\) Diborane is prepared by the oxidation of \(\mathrm{NaBH}_{4}\) with \(\mathrm{I}_{2}\).\((b)\) Each boron atom is in sp \(^{2}\) hybridized state.\((c)\) Diborane has one bridged \(3\) centre\(-2-\)electron bond.\((d)\) Diborane is a planar molecule.The option with correct statement(s) is :

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

190054 Which one of the following compounds of Group\(-14\) elements is not known?

1 \(\left[\mathrm{GeCl}_{6}\right]^{2-}\)
2 \(\left[\mathrm{SiCl}_{6}\right]^{2-}\)
3 \(\left[\mathrm{Sn}(\mathrm{OH})_{6}\right]^{2-}\)
4 \(\left[\mathrm{SiF}_{6}\right]^{2-}\)
11. THE P-BLOCK ELEMENTS

189645 Aluminium is a self-preserving metal, because

1 It is not tarnished by air
2 A thin film of basic carbonate on its surface
3 A non-porous layer of oxide is formed on its surface
4 It is not affected by salt water
For More Updates join with Us
11. THE P-BLOCK ELEMENTS

189644 Which metal is protected by a layer of its own oxide

1 \(Al\)
2 \(Ag\)
3 \(Au\)
4 \(Fe\)
11. THE P-BLOCK ELEMENTS

190053 Given below are the statements about diborane.\((a)\) Diborane is prepared by the oxidation of \(\mathrm{NaBH}_{4}\) with \(\mathrm{I}_{2}\).\((b)\) Each boron atom is in sp \(^{2}\) hybridized state.\((c)\) Diborane has one bridged \(3\) centre\(-2-\)electron bond.\((d)\) Diborane is a planar molecule.The option with correct statement(s) is :

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

190054 Which one of the following compounds of Group\(-14\) elements is not known?

1 \(\left[\mathrm{GeCl}_{6}\right]^{2-}\)
2 \(\left[\mathrm{SiCl}_{6}\right]^{2-}\)
3 \(\left[\mathrm{Sn}(\mathrm{OH})_{6}\right]^{2-}\)
4 \(\left[\mathrm{SiF}_{6}\right]^{2-}\)
11. THE P-BLOCK ELEMENTS

189645 Aluminium is a self-preserving metal, because

1 It is not tarnished by air
2 A thin film of basic carbonate on its surface
3 A non-porous layer of oxide is formed on its surface
4 It is not affected by salt water
NEET DIGITAL LIBRARY
11. THE P-BLOCK ELEMENTS

189644 Which metal is protected by a layer of its own oxide

1 \(Al\)
2 \(Ag\)
3 \(Au\)
4 \(Fe\)
11. THE P-BLOCK ELEMENTS

190053 Given below are the statements about diborane.\((a)\) Diborane is prepared by the oxidation of \(\mathrm{NaBH}_{4}\) with \(\mathrm{I}_{2}\).\((b)\) Each boron atom is in sp \(^{2}\) hybridized state.\((c)\) Diborane has one bridged \(3\) centre\(-2-\)electron bond.\((d)\) Diborane is a planar molecule.The option with correct statement(s) is :

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

190054 Which one of the following compounds of Group\(-14\) elements is not known?

1 \(\left[\mathrm{GeCl}_{6}\right]^{2-}\)
2 \(\left[\mathrm{SiCl}_{6}\right]^{2-}\)
3 \(\left[\mathrm{Sn}(\mathrm{OH})_{6}\right]^{2-}\)
4 \(\left[\mathrm{SiF}_{6}\right]^{2-}\)
11. THE P-BLOCK ELEMENTS

189645 Aluminium is a self-preserving metal, because

1 It is not tarnished by air
2 A thin film of basic carbonate on its surface
3 A non-porous layer of oxide is formed on its surface
4 It is not affected by salt water
Join With Us for More Updates