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

315833 Dehydration of hydrates of halides of calcium, barium and strontium i.e.,
\(\mathrm{CaCl}_{2} 6 \mathrm{H}_{2} \mathrm{O}, \mathrm{BaCl}_{2} .2 \mathrm{H}_{2} \mathrm{O}, \mathrm{SrCl}_{2} .2 \mathrm{H}_{2} \mathrm{O}\)
can be achieved by heating. These become wet on keeping in air. Which of the following statements is correct about these halides?

1 act as dehydrating agent
2 can absorb moisture from air
3 Tendency to form hydrate decreases from calcium to barium
4 All of the above
NCERT Exempler
CHXI10:THE S-BLOCK ELEMENTS

315834 Statement A :
The solubility of alkaline earth metal carbonates and sulphates in water decreases down the group.
Statement B :
Due to larger size of anion, the lattice enthalpy will remain almost constant within a particular group.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI10:THE S-BLOCK ELEMENTS

315835 The value of x is maximum for

1 \({\rm{MgS}}{{\rm{O}}_{\rm{4}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
2 \({\rm{CaS}}{{\rm{O}}_{\rm{4}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
3 \({\rm{BaS}}{{\rm{O}}_{\rm{4}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
4 All have the same
CHXI10:THE S-BLOCK ELEMENTS

315836 Which of the following will precipitate first when aqueous solution containing sulphate ions are added?

1 \(\mathrm{Mg}^{2+}\)
2 \(\mathrm{Ca}^{2+}\)
3 \(\mathrm{Sr}^{2+}\)
4 \(\mathrm{Ba}^{2+}\)
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CHXI10:THE S-BLOCK ELEMENTS

315833 Dehydration of hydrates of halides of calcium, barium and strontium i.e.,
\(\mathrm{CaCl}_{2} 6 \mathrm{H}_{2} \mathrm{O}, \mathrm{BaCl}_{2} .2 \mathrm{H}_{2} \mathrm{O}, \mathrm{SrCl}_{2} .2 \mathrm{H}_{2} \mathrm{O}\)
can be achieved by heating. These become wet on keeping in air. Which of the following statements is correct about these halides?

1 act as dehydrating agent
2 can absorb moisture from air
3 Tendency to form hydrate decreases from calcium to barium
4 All of the above
NCERT Exempler
CHXI10:THE S-BLOCK ELEMENTS

315834 Statement A :
The solubility of alkaline earth metal carbonates and sulphates in water decreases down the group.
Statement B :
Due to larger size of anion, the lattice enthalpy will remain almost constant within a particular group.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI10:THE S-BLOCK ELEMENTS

315835 The value of x is maximum for

1 \({\rm{MgS}}{{\rm{O}}_{\rm{4}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
2 \({\rm{CaS}}{{\rm{O}}_{\rm{4}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
3 \({\rm{BaS}}{{\rm{O}}_{\rm{4}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
4 All have the same
CHXI10:THE S-BLOCK ELEMENTS

315836 Which of the following will precipitate first when aqueous solution containing sulphate ions are added?

1 \(\mathrm{Mg}^{2+}\)
2 \(\mathrm{Ca}^{2+}\)
3 \(\mathrm{Sr}^{2+}\)
4 \(\mathrm{Ba}^{2+}\)
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CHXI10:THE S-BLOCK ELEMENTS

315833 Dehydration of hydrates of halides of calcium, barium and strontium i.e.,
\(\mathrm{CaCl}_{2} 6 \mathrm{H}_{2} \mathrm{O}, \mathrm{BaCl}_{2} .2 \mathrm{H}_{2} \mathrm{O}, \mathrm{SrCl}_{2} .2 \mathrm{H}_{2} \mathrm{O}\)
can be achieved by heating. These become wet on keeping in air. Which of the following statements is correct about these halides?

1 act as dehydrating agent
2 can absorb moisture from air
3 Tendency to form hydrate decreases from calcium to barium
4 All of the above
NCERT Exempler
CHXI10:THE S-BLOCK ELEMENTS

315834 Statement A :
The solubility of alkaline earth metal carbonates and sulphates in water decreases down the group.
Statement B :
Due to larger size of anion, the lattice enthalpy will remain almost constant within a particular group.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI10:THE S-BLOCK ELEMENTS

315835 The value of x is maximum for

1 \({\rm{MgS}}{{\rm{O}}_{\rm{4}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
2 \({\rm{CaS}}{{\rm{O}}_{\rm{4}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
3 \({\rm{BaS}}{{\rm{O}}_{\rm{4}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
4 All have the same
CHXI10:THE S-BLOCK ELEMENTS

315836 Which of the following will precipitate first when aqueous solution containing sulphate ions are added?

1 \(\mathrm{Mg}^{2+}\)
2 \(\mathrm{Ca}^{2+}\)
3 \(\mathrm{Sr}^{2+}\)
4 \(\mathrm{Ba}^{2+}\)
NEET DIGITAL LIBRARY
CHXI10:THE S-BLOCK ELEMENTS

315833 Dehydration of hydrates of halides of calcium, barium and strontium i.e.,
\(\mathrm{CaCl}_{2} 6 \mathrm{H}_{2} \mathrm{O}, \mathrm{BaCl}_{2} .2 \mathrm{H}_{2} \mathrm{O}, \mathrm{SrCl}_{2} .2 \mathrm{H}_{2} \mathrm{O}\)
can be achieved by heating. These become wet on keeping in air. Which of the following statements is correct about these halides?

1 act as dehydrating agent
2 can absorb moisture from air
3 Tendency to form hydrate decreases from calcium to barium
4 All of the above
NCERT Exempler
CHXI10:THE S-BLOCK ELEMENTS

315834 Statement A :
The solubility of alkaline earth metal carbonates and sulphates in water decreases down the group.
Statement B :
Due to larger size of anion, the lattice enthalpy will remain almost constant within a particular group.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI10:THE S-BLOCK ELEMENTS

315835 The value of x is maximum for

1 \({\rm{MgS}}{{\rm{O}}_{\rm{4}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
2 \({\rm{CaS}}{{\rm{O}}_{\rm{4}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
3 \({\rm{BaS}}{{\rm{O}}_{\rm{4}}}{\rm{.x}}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)
4 All have the same
CHXI10:THE S-BLOCK ELEMENTS

315836 Which of the following will precipitate first when aqueous solution containing sulphate ions are added?

1 \(\mathrm{Mg}^{2+}\)
2 \(\mathrm{Ca}^{2+}\)
3 \(\mathrm{Sr}^{2+}\)
4 \(\mathrm{Ba}^{2+}\)
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