Chemical Properties and General Characteristics of Alkali Metals
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NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXI10:THE S-BLOCK ELEMENTS

315820 Which of the following elements does not form hydride by direct heating with dihydrogen?

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

315821 \(\mathrm{BeH}_{2}\) is prepared by the reaction

1 \(\mathrm{BeCl}_{2}+\mathrm{LiAlH}_{4} \stackrel{\text { ether }}{\longrightarrow} \mathrm{BeH}_{2}+\mathrm{AlCl}_{3}+\mathrm{HCl}\)
2 \(\mathrm{Be}+\mathrm{H}_{2} \longrightarrow \mathrm{BeH}_{2}\)
3 Both (1) and (2)
4 None of these
CHXI10:THE S-BLOCK ELEMENTS

315822 Which of the following hydrides is not ionic?

1 \(\mathrm{CaH}_{2}\)
2 \(\mathrm{BaH}_{2}\)
3 \(\mathrm{SrH}_{2}\)
4 \(\mathrm{BeH}_{2}\)
CHXI10:THE S-BLOCK ELEMENTS

315823 Among \(\mathrm{CaH}_{2}, \mathrm{BeH}_{2}, \mathrm{BaH}_{2}\), the order of ionic character is

1 \(\mathrm{BeH}_{2} < \mathrm{BaH}_{2} < \mathrm{CaH}_{2}\)
2 \(\mathrm{BaH}_{2} < \mathrm{BeH}_{2} < \mathrm{CaH}_{2}\)
3 \(\mathrm{CaH}_{2} < \mathrm{BeH}_{2} < \mathrm{BaH}_{2}\)
4 \(\mathrm{BeH}_{2} < \mathrm{CaH}_{2} < \mathrm{BaH}_{2}\)
NEET - 2018
NEET DIGITAL LIBRARY
CHXI10:THE S-BLOCK ELEMENTS

315820 Which of the following elements does not form hydride by direct heating with dihydrogen?

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

315821 \(\mathrm{BeH}_{2}\) is prepared by the reaction

1 \(\mathrm{BeCl}_{2}+\mathrm{LiAlH}_{4} \stackrel{\text { ether }}{\longrightarrow} \mathrm{BeH}_{2}+\mathrm{AlCl}_{3}+\mathrm{HCl}\)
2 \(\mathrm{Be}+\mathrm{H}_{2} \longrightarrow \mathrm{BeH}_{2}\)
3 Both (1) and (2)
4 None of these
CHXI10:THE S-BLOCK ELEMENTS

315822 Which of the following hydrides is not ionic?

1 \(\mathrm{CaH}_{2}\)
2 \(\mathrm{BaH}_{2}\)
3 \(\mathrm{SrH}_{2}\)
4 \(\mathrm{BeH}_{2}\)
CHXI10:THE S-BLOCK ELEMENTS

315823 Among \(\mathrm{CaH}_{2}, \mathrm{BeH}_{2}, \mathrm{BaH}_{2}\), the order of ionic character is

1 \(\mathrm{BeH}_{2} < \mathrm{BaH}_{2} < \mathrm{CaH}_{2}\)
2 \(\mathrm{BaH}_{2} < \mathrm{BeH}_{2} < \mathrm{CaH}_{2}\)
3 \(\mathrm{CaH}_{2} < \mathrm{BeH}_{2} < \mathrm{BaH}_{2}\)
4 \(\mathrm{BeH}_{2} < \mathrm{CaH}_{2} < \mathrm{BaH}_{2}\)
NEET - 2018
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CHXI10:THE S-BLOCK ELEMENTS

315820 Which of the following elements does not form hydride by direct heating with dihydrogen?

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

315821 \(\mathrm{BeH}_{2}\) is prepared by the reaction

1 \(\mathrm{BeCl}_{2}+\mathrm{LiAlH}_{4} \stackrel{\text { ether }}{\longrightarrow} \mathrm{BeH}_{2}+\mathrm{AlCl}_{3}+\mathrm{HCl}\)
2 \(\mathrm{Be}+\mathrm{H}_{2} \longrightarrow \mathrm{BeH}_{2}\)
3 Both (1) and (2)
4 None of these
CHXI10:THE S-BLOCK ELEMENTS

315822 Which of the following hydrides is not ionic?

1 \(\mathrm{CaH}_{2}\)
2 \(\mathrm{BaH}_{2}\)
3 \(\mathrm{SrH}_{2}\)
4 \(\mathrm{BeH}_{2}\)
CHXI10:THE S-BLOCK ELEMENTS

315823 Among \(\mathrm{CaH}_{2}, \mathrm{BeH}_{2}, \mathrm{BaH}_{2}\), the order of ionic character is

1 \(\mathrm{BeH}_{2} < \mathrm{BaH}_{2} < \mathrm{CaH}_{2}\)
2 \(\mathrm{BaH}_{2} < \mathrm{BeH}_{2} < \mathrm{CaH}_{2}\)
3 \(\mathrm{CaH}_{2} < \mathrm{BeH}_{2} < \mathrm{BaH}_{2}\)
4 \(\mathrm{BeH}_{2} < \mathrm{CaH}_{2} < \mathrm{BaH}_{2}\)
NEET - 2018
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXI10:THE S-BLOCK ELEMENTS

315820 Which of the following elements does not form hydride by direct heating with dihydrogen?

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

315821 \(\mathrm{BeH}_{2}\) is prepared by the reaction

1 \(\mathrm{BeCl}_{2}+\mathrm{LiAlH}_{4} \stackrel{\text { ether }}{\longrightarrow} \mathrm{BeH}_{2}+\mathrm{AlCl}_{3}+\mathrm{HCl}\)
2 \(\mathrm{Be}+\mathrm{H}_{2} \longrightarrow \mathrm{BeH}_{2}\)
3 Both (1) and (2)
4 None of these
CHXI10:THE S-BLOCK ELEMENTS

315822 Which of the following hydrides is not ionic?

1 \(\mathrm{CaH}_{2}\)
2 \(\mathrm{BaH}_{2}\)
3 \(\mathrm{SrH}_{2}\)
4 \(\mathrm{BeH}_{2}\)
CHXI10:THE S-BLOCK ELEMENTS

315823 Among \(\mathrm{CaH}_{2}, \mathrm{BeH}_{2}, \mathrm{BaH}_{2}\), the order of ionic character is

1 \(\mathrm{BeH}_{2} < \mathrm{BaH}_{2} < \mathrm{CaH}_{2}\)
2 \(\mathrm{BaH}_{2} < \mathrm{BeH}_{2} < \mathrm{CaH}_{2}\)
3 \(\mathrm{CaH}_{2} < \mathrm{BeH}_{2} < \mathrm{BaH}_{2}\)
4 \(\mathrm{BeH}_{2} < \mathrm{CaH}_{2} < \mathrm{BaH}_{2}\)
NEET - 2018
NEET DIGITAL LIBRARY