Anomalous Properties of Beryllium
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CHXI10:THE S-BLOCK ELEMENTS

315727 Beryllium resembles much with :

1 \(\mathrm{Zn}\)
2 \(\mathrm{Al}\)
3 \(\mathrm{Li}\)
4 \(\mathrm{Ra}\)
CHXI10:THE S-BLOCK ELEMENTS

315728 Which of the following statement(s) is/are correct regarding \(\mathrm{Al}\) and \(\mathrm{Be}\) ?
(i) Both of these react with alkali.
(ii) There is diagonal relationship among these elements

1 Both (i) and (ii)
2 Only (i)
3 Only (ii)
4 Neither (i) nor (ii)
CHXI10:THE S-BLOCK ELEMENTS

315729 Element ' \({\mathrm{x}}\) ' belongs to group 2. It shows diagonal relationship to aluminium. What is the number of protons in an atom of element ' \({\mathrm{x}}\) '?

1 15
2 10
3 8
4 4
CHXI10:THE S-BLOCK ELEMENTS

315730 Which of the following statement(s) is/are not true about the diagonal relationship of \(\mathrm{Be}\) and \(\mathrm{Al}\) ?
A. Both react with \(\mathrm{NaOH}\) to liberate hydrogen
B. Their oxides are basic
C. They become passive by concentrated \(\mathrm{HNO}_{3}\)
D. Their carbides give acetylene on treatment with water

1 Only A
2 B and C
3 A and D
4 B and D
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CHXI10:THE S-BLOCK ELEMENTS

315727 Beryllium resembles much with :

1 \(\mathrm{Zn}\)
2 \(\mathrm{Al}\)
3 \(\mathrm{Li}\)
4 \(\mathrm{Ra}\)
CHXI10:THE S-BLOCK ELEMENTS

315728 Which of the following statement(s) is/are correct regarding \(\mathrm{Al}\) and \(\mathrm{Be}\) ?
(i) Both of these react with alkali.
(ii) There is diagonal relationship among these elements

1 Both (i) and (ii)
2 Only (i)
3 Only (ii)
4 Neither (i) nor (ii)
CHXI10:THE S-BLOCK ELEMENTS

315729 Element ' \({\mathrm{x}}\) ' belongs to group 2. It shows diagonal relationship to aluminium. What is the number of protons in an atom of element ' \({\mathrm{x}}\) '?

1 15
2 10
3 8
4 4
CHXI10:THE S-BLOCK ELEMENTS

315730 Which of the following statement(s) is/are not true about the diagonal relationship of \(\mathrm{Be}\) and \(\mathrm{Al}\) ?
A. Both react with \(\mathrm{NaOH}\) to liberate hydrogen
B. Their oxides are basic
C. They become passive by concentrated \(\mathrm{HNO}_{3}\)
D. Their carbides give acetylene on treatment with water

1 Only A
2 B and C
3 A and D
4 B and D
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CHXI10:THE S-BLOCK ELEMENTS

315727 Beryllium resembles much with :

1 \(\mathrm{Zn}\)
2 \(\mathrm{Al}\)
3 \(\mathrm{Li}\)
4 \(\mathrm{Ra}\)
CHXI10:THE S-BLOCK ELEMENTS

315728 Which of the following statement(s) is/are correct regarding \(\mathrm{Al}\) and \(\mathrm{Be}\) ?
(i) Both of these react with alkali.
(ii) There is diagonal relationship among these elements

1 Both (i) and (ii)
2 Only (i)
3 Only (ii)
4 Neither (i) nor (ii)
CHXI10:THE S-BLOCK ELEMENTS

315729 Element ' \({\mathrm{x}}\) ' belongs to group 2. It shows diagonal relationship to aluminium. What is the number of protons in an atom of element ' \({\mathrm{x}}\) '?

1 15
2 10
3 8
4 4
CHXI10:THE S-BLOCK ELEMENTS

315730 Which of the following statement(s) is/are not true about the diagonal relationship of \(\mathrm{Be}\) and \(\mathrm{Al}\) ?
A. Both react with \(\mathrm{NaOH}\) to liberate hydrogen
B. Their oxides are basic
C. They become passive by concentrated \(\mathrm{HNO}_{3}\)
D. Their carbides give acetylene on treatment with water

1 Only A
2 B and C
3 A and D
4 B and D
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CHXI10:THE S-BLOCK ELEMENTS

315727 Beryllium resembles much with :

1 \(\mathrm{Zn}\)
2 \(\mathrm{Al}\)
3 \(\mathrm{Li}\)
4 \(\mathrm{Ra}\)
CHXI10:THE S-BLOCK ELEMENTS

315728 Which of the following statement(s) is/are correct regarding \(\mathrm{Al}\) and \(\mathrm{Be}\) ?
(i) Both of these react with alkali.
(ii) There is diagonal relationship among these elements

1 Both (i) and (ii)
2 Only (i)
3 Only (ii)
4 Neither (i) nor (ii)
CHXI10:THE S-BLOCK ELEMENTS

315729 Element ' \({\mathrm{x}}\) ' belongs to group 2. It shows diagonal relationship to aluminium. What is the number of protons in an atom of element ' \({\mathrm{x}}\) '?

1 15
2 10
3 8
4 4
CHXI10:THE S-BLOCK ELEMENTS

315730 Which of the following statement(s) is/are not true about the diagonal relationship of \(\mathrm{Be}\) and \(\mathrm{Al}\) ?
A. Both react with \(\mathrm{NaOH}\) to liberate hydrogen
B. Their oxides are basic
C. They become passive by concentrated \(\mathrm{HNO}_{3}\)
D. Their carbides give acetylene on treatment with water

1 Only A
2 B and C
3 A and D
4 B and D
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