189634
The liquid field metal expanding on solidification is
1 \(Ga\)
2 \(Al\)
3 \(Zn\)
4 \(Cu\)
Explanation:
(a) Liquified Ga expand on solidification \(Ga\) is less electropositive in nature, It has the weak metallic bond so it expand on solidification.
11. THE P-BLOCK ELEMENTS
189637
Which of the following is known as inorganic benzene
1 Borazine
2 Boron nitride
3 \(p\) - dichlorobenzene
4 Phosphonitrilic acid
Explanation:
(a) Borazine \({B_3}{N_3}{H_6}\), is isoelectronic to benzene and hence, is called inorganic benzene some physical properties of benzene and borazine are also similar.
11. THE P-BLOCK ELEMENTS
189638
Which of the following is only acidic in nature
1 \(Be{(OH)_2}\)
2 \(Mg{(OH)_2}\)
3 \(B{(OH)_3}\)
4 \(Al{(OH)_3}\)
Explanation:
(c) Except \(B{(OH)_3}\) all other hydroxide are of metallic hydroxide having the basic nature \(B{(OH)_3}\) are the hydroxide of nonmetal showing the acidic nature.
11. THE P-BLOCK ELEMENTS
189660
Aluminium \((III)\) chloride forms a dimer because
1 Higher coordination number can be achieved by aluminium
2 Aluminium has high ionization energy
3 Aluminium belongs to \(III\) group
4 It cannot form a trimer
Explanation:
\(AlCl _3\) can form dimer and exists as \(Al _2 Cl _6\), aluminium has vacant \(d\)-orbitals which can accommodate electron from chlorine atom. \(AlCl _3\) is an electron deficient compound in \(Al\) (octet incomplete) thus behaves as Lewis acid and \(Al\) completes it by taking electron pair from \(Cl\)-atom as shown in figure.
NEET Test Series from KOTA - 10 Papers In MS WORD
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11. THE P-BLOCK ELEMENTS
189634
The liquid field metal expanding on solidification is
1 \(Ga\)
2 \(Al\)
3 \(Zn\)
4 \(Cu\)
Explanation:
(a) Liquified Ga expand on solidification \(Ga\) is less electropositive in nature, It has the weak metallic bond so it expand on solidification.
11. THE P-BLOCK ELEMENTS
189637
Which of the following is known as inorganic benzene
1 Borazine
2 Boron nitride
3 \(p\) - dichlorobenzene
4 Phosphonitrilic acid
Explanation:
(a) Borazine \({B_3}{N_3}{H_6}\), is isoelectronic to benzene and hence, is called inorganic benzene some physical properties of benzene and borazine are also similar.
11. THE P-BLOCK ELEMENTS
189638
Which of the following is only acidic in nature
1 \(Be{(OH)_2}\)
2 \(Mg{(OH)_2}\)
3 \(B{(OH)_3}\)
4 \(Al{(OH)_3}\)
Explanation:
(c) Except \(B{(OH)_3}\) all other hydroxide are of metallic hydroxide having the basic nature \(B{(OH)_3}\) are the hydroxide of nonmetal showing the acidic nature.
11. THE P-BLOCK ELEMENTS
189660
Aluminium \((III)\) chloride forms a dimer because
1 Higher coordination number can be achieved by aluminium
2 Aluminium has high ionization energy
3 Aluminium belongs to \(III\) group
4 It cannot form a trimer
Explanation:
\(AlCl _3\) can form dimer and exists as \(Al _2 Cl _6\), aluminium has vacant \(d\)-orbitals which can accommodate electron from chlorine atom. \(AlCl _3\) is an electron deficient compound in \(Al\) (octet incomplete) thus behaves as Lewis acid and \(Al\) completes it by taking electron pair from \(Cl\)-atom as shown in figure.
189634
The liquid field metal expanding on solidification is
1 \(Ga\)
2 \(Al\)
3 \(Zn\)
4 \(Cu\)
Explanation:
(a) Liquified Ga expand on solidification \(Ga\) is less electropositive in nature, It has the weak metallic bond so it expand on solidification.
11. THE P-BLOCK ELEMENTS
189637
Which of the following is known as inorganic benzene
1 Borazine
2 Boron nitride
3 \(p\) - dichlorobenzene
4 Phosphonitrilic acid
Explanation:
(a) Borazine \({B_3}{N_3}{H_6}\), is isoelectronic to benzene and hence, is called inorganic benzene some physical properties of benzene and borazine are also similar.
11. THE P-BLOCK ELEMENTS
189638
Which of the following is only acidic in nature
1 \(Be{(OH)_2}\)
2 \(Mg{(OH)_2}\)
3 \(B{(OH)_3}\)
4 \(Al{(OH)_3}\)
Explanation:
(c) Except \(B{(OH)_3}\) all other hydroxide are of metallic hydroxide having the basic nature \(B{(OH)_3}\) are the hydroxide of nonmetal showing the acidic nature.
11. THE P-BLOCK ELEMENTS
189660
Aluminium \((III)\) chloride forms a dimer because
1 Higher coordination number can be achieved by aluminium
2 Aluminium has high ionization energy
3 Aluminium belongs to \(III\) group
4 It cannot form a trimer
Explanation:
\(AlCl _3\) can form dimer and exists as \(Al _2 Cl _6\), aluminium has vacant \(d\)-orbitals which can accommodate electron from chlorine atom. \(AlCl _3\) is an electron deficient compound in \(Al\) (octet incomplete) thus behaves as Lewis acid and \(Al\) completes it by taking electron pair from \(Cl\)-atom as shown in figure.
189634
The liquid field metal expanding on solidification is
1 \(Ga\)
2 \(Al\)
3 \(Zn\)
4 \(Cu\)
Explanation:
(a) Liquified Ga expand on solidification \(Ga\) is less electropositive in nature, It has the weak metallic bond so it expand on solidification.
11. THE P-BLOCK ELEMENTS
189637
Which of the following is known as inorganic benzene
1 Borazine
2 Boron nitride
3 \(p\) - dichlorobenzene
4 Phosphonitrilic acid
Explanation:
(a) Borazine \({B_3}{N_3}{H_6}\), is isoelectronic to benzene and hence, is called inorganic benzene some physical properties of benzene and borazine are also similar.
11. THE P-BLOCK ELEMENTS
189638
Which of the following is only acidic in nature
1 \(Be{(OH)_2}\)
2 \(Mg{(OH)_2}\)
3 \(B{(OH)_3}\)
4 \(Al{(OH)_3}\)
Explanation:
(c) Except \(B{(OH)_3}\) all other hydroxide are of metallic hydroxide having the basic nature \(B{(OH)_3}\) are the hydroxide of nonmetal showing the acidic nature.
11. THE P-BLOCK ELEMENTS
189660
Aluminium \((III)\) chloride forms a dimer because
1 Higher coordination number can be achieved by aluminium
2 Aluminium has high ionization energy
3 Aluminium belongs to \(III\) group
4 It cannot form a trimer
Explanation:
\(AlCl _3\) can form dimer and exists as \(Al _2 Cl _6\), aluminium has vacant \(d\)-orbitals which can accommodate electron from chlorine atom. \(AlCl _3\) is an electron deficient compound in \(Al\) (octet incomplete) thus behaves as Lewis acid and \(Al\) completes it by taking electron pair from \(Cl\)-atom as shown in figure.
