11. THE P-BLOCK ELEMENTS
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
11. THE P-BLOCK ELEMENTS

189658 Which one of the following is correct statement

1 The hydroxide of aluminium is more acidic than that of boron
2 The hydroxide of boron is basic, while that of aluminium is amphoteric
3 The hydroxide of boron is acidic, while that of aluminium is amphoteric
4 The hydroxide of boron and aluminium are amphoteric
11. THE P-BLOCK ELEMENTS

189659 \(AlC{l_3}\) is

1 Anhydrous and covalent
2 Anhydrous and ionic
3 Covalent and basic
4 Coordinate and acidic
11. THE P-BLOCK ELEMENTS

189756 Which of the following lead oxides is ‘Sindhur’

1 \(PbO\)
2 \(Pb{O_2}\)
3 \(P{b_2}{O_3}\)
4 \(P{b_3}{O_4}\)
11. THE P-BLOCK ELEMENTS

190075 Given below are two statements :Statement \(I:\) Upon heating a borax bead dipped in cupric sulphate in a luminous flame, the colour of the bead becomes green.Statement \(II:\) The green colour observed is due to the formation of copper(I) metaborate.In the light of the above statements, choose the most appropriate answer from the options given below :

1 Both Statement \(I\) and Statement \(II\) are true
2 Statement \(I\) is true but Statement \(II\) is false
3 Both Statement \(I\) and Statement \(II\) are false
4 Statement \(I\) is false but Statement \(I\) is true
11. THE P-BLOCK ELEMENTS

189658 Which one of the following is correct statement

1 The hydroxide of aluminium is more acidic than that of boron
2 The hydroxide of boron is basic, while that of aluminium is amphoteric
3 The hydroxide of boron is acidic, while that of aluminium is amphoteric
4 The hydroxide of boron and aluminium are amphoteric
11. THE P-BLOCK ELEMENTS

189659 \(AlC{l_3}\) is

1 Anhydrous and covalent
2 Anhydrous and ionic
3 Covalent and basic
4 Coordinate and acidic
11. THE P-BLOCK ELEMENTS

189756 Which of the following lead oxides is ‘Sindhur’

1 \(PbO\)
2 \(Pb{O_2}\)
3 \(P{b_2}{O_3}\)
4 \(P{b_3}{O_4}\)
11. THE P-BLOCK ELEMENTS

190075 Given below are two statements :Statement \(I:\) Upon heating a borax bead dipped in cupric sulphate in a luminous flame, the colour of the bead becomes green.Statement \(II:\) The green colour observed is due to the formation of copper(I) metaborate.In the light of the above statements, choose the most appropriate answer from the options given below :

1 Both Statement \(I\) and Statement \(II\) are true
2 Statement \(I\) is true but Statement \(II\) is false
3 Both Statement \(I\) and Statement \(II\) are false
4 Statement \(I\) is false but Statement \(I\) is true
11. THE P-BLOCK ELEMENTS

189658 Which one of the following is correct statement

1 The hydroxide of aluminium is more acidic than that of boron
2 The hydroxide of boron is basic, while that of aluminium is amphoteric
3 The hydroxide of boron is acidic, while that of aluminium is amphoteric
4 The hydroxide of boron and aluminium are amphoteric
11. THE P-BLOCK ELEMENTS

189659 \(AlC{l_3}\) is

1 Anhydrous and covalent
2 Anhydrous and ionic
3 Covalent and basic
4 Coordinate and acidic
11. THE P-BLOCK ELEMENTS

189756 Which of the following lead oxides is ‘Sindhur’

1 \(PbO\)
2 \(Pb{O_2}\)
3 \(P{b_2}{O_3}\)
4 \(P{b_3}{O_4}\)
11. THE P-BLOCK ELEMENTS

190075 Given below are two statements :Statement \(I:\) Upon heating a borax bead dipped in cupric sulphate in a luminous flame, the colour of the bead becomes green.Statement \(II:\) The green colour observed is due to the formation of copper(I) metaborate.In the light of the above statements, choose the most appropriate answer from the options given below :

1 Both Statement \(I\) and Statement \(II\) are true
2 Statement \(I\) is true but Statement \(II\) is false
3 Both Statement \(I\) and Statement \(II\) are false
4 Statement \(I\) is false but Statement \(I\) is true
11. THE P-BLOCK ELEMENTS

189658 Which one of the following is correct statement

1 The hydroxide of aluminium is more acidic than that of boron
2 The hydroxide of boron is basic, while that of aluminium is amphoteric
3 The hydroxide of boron is acidic, while that of aluminium is amphoteric
4 The hydroxide of boron and aluminium are amphoteric
11. THE P-BLOCK ELEMENTS

189659 \(AlC{l_3}\) is

1 Anhydrous and covalent
2 Anhydrous and ionic
3 Covalent and basic
4 Coordinate and acidic
11. THE P-BLOCK ELEMENTS

189756 Which of the following lead oxides is ‘Sindhur’

1 \(PbO\)
2 \(Pb{O_2}\)
3 \(P{b_2}{O_3}\)
4 \(P{b_3}{O_4}\)
11. THE P-BLOCK ELEMENTS

190075 Given below are two statements :Statement \(I:\) Upon heating a borax bead dipped in cupric sulphate in a luminous flame, the colour of the bead becomes green.Statement \(II:\) The green colour observed is due to the formation of copper(I) metaborate.In the light of the above statements, choose the most appropriate answer from the options given below :

1 Both Statement \(I\) and Statement \(II\) are true
2 Statement \(I\) is true but Statement \(II\) is false
3 Both Statement \(I\) and Statement \(II\) are false
4 Statement \(I\) is false but Statement \(I\) is true