Chemical Properties and General Characteristics of Alkali Metals
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CHXI10:THE S-BLOCK ELEMENTS

315816 Amphoteric hydroxides react with both alkalies and acids. Which of the following Group 2 metal hydroxides is soluble in sodium hydroxide?

1 \(\mathrm{Be}(\mathrm{OH})_{2}\)
2 \(\mathrm{Mg}(\mathrm{OH})_{2}\)
3 \(\mathrm{Ca}(\mathrm{OH})_{2}\)
4 \(\mathrm{Ba}(\mathrm{OH})_{2}\)
NCERT Exempler
CHXI10:THE S-BLOCK ELEMENTS

315817 The pair of amphoteric hydroxides is

1 \(\mathrm{Al}(\mathrm{OH})_{3}, \mathrm{LiOH}\)
2 \(\mathrm{Be}(\mathrm{OH})_{2}, \mathrm{Mg}(\mathrm{OH})_{2}\)
3 \(\mathrm{B}(\mathrm{OH})_{3}, \mathrm{Be}(\mathrm{OH})_{2}\)
4 \(\mathrm{Be}(\mathrm{OH})_{2}, \mathrm{Zn}(\mathrm{OH})_{2}\)
CHXI10:THE S-BLOCK ELEMENTS

315818 Which of the following has correct increasing basic strength?

1 \(\mathrm{MgO} < \mathrm{BeO} < \mathrm{CaO} < \mathrm{BaO}\)
2 \(\mathrm{BeO} < \mathrm{MgO} < \mathrm{CaO} < \mathrm{BaO}\)
3 \(\mathrm{BaO} < \mathrm{CaO} < \mathrm{MgO} < \mathrm{BeO}\)
4 \(\mathrm{CaO} < \mathrm{BaO} < \mathrm{BeO} < \mathrm{MgO}\)
CHXI10:THE S-BLOCK ELEMENTS

315819 \(\mathrm{Be}(\mathrm{OH})_{2}\) is insoluble in water while \(\mathrm{Ba}(\mathrm{OH})_{2}\) is highly soluble due to

1 Hard acid
2 Bond order
3 Lattice energy difference
4 Common ion effect
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NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXI10:THE S-BLOCK ELEMENTS

315816 Amphoteric hydroxides react with both alkalies and acids. Which of the following Group 2 metal hydroxides is soluble in sodium hydroxide?

1 \(\mathrm{Be}(\mathrm{OH})_{2}\)
2 \(\mathrm{Mg}(\mathrm{OH})_{2}\)
3 \(\mathrm{Ca}(\mathrm{OH})_{2}\)
4 \(\mathrm{Ba}(\mathrm{OH})_{2}\)
NCERT Exempler
CHXI10:THE S-BLOCK ELEMENTS

315817 The pair of amphoteric hydroxides is

1 \(\mathrm{Al}(\mathrm{OH})_{3}, \mathrm{LiOH}\)
2 \(\mathrm{Be}(\mathrm{OH})_{2}, \mathrm{Mg}(\mathrm{OH})_{2}\)
3 \(\mathrm{B}(\mathrm{OH})_{3}, \mathrm{Be}(\mathrm{OH})_{2}\)
4 \(\mathrm{Be}(\mathrm{OH})_{2}, \mathrm{Zn}(\mathrm{OH})_{2}\)
CHXI10:THE S-BLOCK ELEMENTS

315818 Which of the following has correct increasing basic strength?

1 \(\mathrm{MgO} < \mathrm{BeO} < \mathrm{CaO} < \mathrm{BaO}\)
2 \(\mathrm{BeO} < \mathrm{MgO} < \mathrm{CaO} < \mathrm{BaO}\)
3 \(\mathrm{BaO} < \mathrm{CaO} < \mathrm{MgO} < \mathrm{BeO}\)
4 \(\mathrm{CaO} < \mathrm{BaO} < \mathrm{BeO} < \mathrm{MgO}\)
CHXI10:THE S-BLOCK ELEMENTS

315819 \(\mathrm{Be}(\mathrm{OH})_{2}\) is insoluble in water while \(\mathrm{Ba}(\mathrm{OH})_{2}\) is highly soluble due to

1 Hard acid
2 Bond order
3 Lattice energy difference
4 Common ion effect
NEET DIGITAL LIBRARY
CHXI10:THE S-BLOCK ELEMENTS

315816 Amphoteric hydroxides react with both alkalies and acids. Which of the following Group 2 metal hydroxides is soluble in sodium hydroxide?

1 \(\mathrm{Be}(\mathrm{OH})_{2}\)
2 \(\mathrm{Mg}(\mathrm{OH})_{2}\)
3 \(\mathrm{Ca}(\mathrm{OH})_{2}\)
4 \(\mathrm{Ba}(\mathrm{OH})_{2}\)
NCERT Exempler
CHXI10:THE S-BLOCK ELEMENTS

315817 The pair of amphoteric hydroxides is

1 \(\mathrm{Al}(\mathrm{OH})_{3}, \mathrm{LiOH}\)
2 \(\mathrm{Be}(\mathrm{OH})_{2}, \mathrm{Mg}(\mathrm{OH})_{2}\)
3 \(\mathrm{B}(\mathrm{OH})_{3}, \mathrm{Be}(\mathrm{OH})_{2}\)
4 \(\mathrm{Be}(\mathrm{OH})_{2}, \mathrm{Zn}(\mathrm{OH})_{2}\)
CHXI10:THE S-BLOCK ELEMENTS

315818 Which of the following has correct increasing basic strength?

1 \(\mathrm{MgO} < \mathrm{BeO} < \mathrm{CaO} < \mathrm{BaO}\)
2 \(\mathrm{BeO} < \mathrm{MgO} < \mathrm{CaO} < \mathrm{BaO}\)
3 \(\mathrm{BaO} < \mathrm{CaO} < \mathrm{MgO} < \mathrm{BeO}\)
4 \(\mathrm{CaO} < \mathrm{BaO} < \mathrm{BeO} < \mathrm{MgO}\)
CHXI10:THE S-BLOCK ELEMENTS

315819 \(\mathrm{Be}(\mathrm{OH})_{2}\) is insoluble in water while \(\mathrm{Ba}(\mathrm{OH})_{2}\) is highly soluble due to

1 Hard acid
2 Bond order
3 Lattice energy difference
4 Common ion effect
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CHXI10:THE S-BLOCK ELEMENTS

315816 Amphoteric hydroxides react with both alkalies and acids. Which of the following Group 2 metal hydroxides is soluble in sodium hydroxide?

1 \(\mathrm{Be}(\mathrm{OH})_{2}\)
2 \(\mathrm{Mg}(\mathrm{OH})_{2}\)
3 \(\mathrm{Ca}(\mathrm{OH})_{2}\)
4 \(\mathrm{Ba}(\mathrm{OH})_{2}\)
NCERT Exempler
CHXI10:THE S-BLOCK ELEMENTS

315817 The pair of amphoteric hydroxides is

1 \(\mathrm{Al}(\mathrm{OH})_{3}, \mathrm{LiOH}\)
2 \(\mathrm{Be}(\mathrm{OH})_{2}, \mathrm{Mg}(\mathrm{OH})_{2}\)
3 \(\mathrm{B}(\mathrm{OH})_{3}, \mathrm{Be}(\mathrm{OH})_{2}\)
4 \(\mathrm{Be}(\mathrm{OH})_{2}, \mathrm{Zn}(\mathrm{OH})_{2}\)
CHXI10:THE S-BLOCK ELEMENTS

315818 Which of the following has correct increasing basic strength?

1 \(\mathrm{MgO} < \mathrm{BeO} < \mathrm{CaO} < \mathrm{BaO}\)
2 \(\mathrm{BeO} < \mathrm{MgO} < \mathrm{CaO} < \mathrm{BaO}\)
3 \(\mathrm{BaO} < \mathrm{CaO} < \mathrm{MgO} < \mathrm{BeO}\)
4 \(\mathrm{CaO} < \mathrm{BaO} < \mathrm{BeO} < \mathrm{MgO}\)
CHXI10:THE S-BLOCK ELEMENTS

315819 \(\mathrm{Be}(\mathrm{OH})_{2}\) is insoluble in water while \(\mathrm{Ba}(\mathrm{OH})_{2}\) is highly soluble due to

1 Hard acid
2 Bond order
3 Lattice energy difference
4 Common ion effect
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