Hydrides
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CHXI09:HYDROGEN

315566 Metal hydrides are ionic, covalent or molecular in nature. Among LiH, \(\mathrm{\mathrm{NaH}, \mathrm{KH}, \mathrm{RbH}, \mathrm{CsH}}\), the correct order of increasing ionic character is

1 \(\mathrm{\mathrm{LiH}>\mathrm{NaH}>\mathrm{CsH}>\mathrm{KH}>\mathrm{RbH}}\)
2 \(\mathrm{\mathrm{LiH} < \mathrm{NaH} < \mathrm{KH} < \mathrm{RbH} < \mathrm{CsH}}\)
3 \(\mathrm{\mathrm{RbH}>\mathrm{CsH}>\mathrm{NaH}>\mathrm{KH}>\mathrm{LiH}}\)
4 \(\mathrm{\mathrm{NaH}>\mathrm{CsH}>\mathrm{RbH}>\mathrm{LiH}>\mathrm{KH}}\)
NCERT Exemplar
CHXI09:HYDROGEN

315567 The alkali metals form salt like hydrides by direct synthesis at elevated temperatures. The thermal stability of these hydrides decrease in which of the following orders?

1 \(\mathrm{\mathrm{NaH}>\mathrm{LiH}>\mathrm{KH}>\mathrm{RbH}>\mathrm{CsH}}\)
2 \(\mathrm{\mathrm{LiH}>\mathrm{NaH}>\mathrm{KH}>\mathrm{RbH}>\mathrm{CsH}}\)
3 \(\mathrm{\mathrm{CsH}>\mathrm{RbH}>\mathrm{KH}>\mathrm{NaH}>\mathrm{LiH}}\)
4 \(\mathrm{\mathrm{KH}>\mathrm{NaH}>\mathrm{LiH}>\mathrm{CsH}>\mathrm{RbH}}\)
CHXI09:HYDROGEN

315568 Saline hydrides react explosively with water, such fires can be extinguished by

1 water
2 carbon dioxide
3 sand
4 none of these
CHXI09:HYDROGEN

315569 Ionic hydrides react with water to give

1 Acidic solutions
2 Basic solutions
3 Hydride ions
4 Protons
NEET DIGITAL LIBRARY
CHXI09:HYDROGEN

315566 Metal hydrides are ionic, covalent or molecular in nature. Among LiH, \(\mathrm{\mathrm{NaH}, \mathrm{KH}, \mathrm{RbH}, \mathrm{CsH}}\), the correct order of increasing ionic character is

1 \(\mathrm{\mathrm{LiH}>\mathrm{NaH}>\mathrm{CsH}>\mathrm{KH}>\mathrm{RbH}}\)
2 \(\mathrm{\mathrm{LiH} < \mathrm{NaH} < \mathrm{KH} < \mathrm{RbH} < \mathrm{CsH}}\)
3 \(\mathrm{\mathrm{RbH}>\mathrm{CsH}>\mathrm{NaH}>\mathrm{KH}>\mathrm{LiH}}\)
4 \(\mathrm{\mathrm{NaH}>\mathrm{CsH}>\mathrm{RbH}>\mathrm{LiH}>\mathrm{KH}}\)
NCERT Exemplar
CHXI09:HYDROGEN

315567 The alkali metals form salt like hydrides by direct synthesis at elevated temperatures. The thermal stability of these hydrides decrease in which of the following orders?

1 \(\mathrm{\mathrm{NaH}>\mathrm{LiH}>\mathrm{KH}>\mathrm{RbH}>\mathrm{CsH}}\)
2 \(\mathrm{\mathrm{LiH}>\mathrm{NaH}>\mathrm{KH}>\mathrm{RbH}>\mathrm{CsH}}\)
3 \(\mathrm{\mathrm{CsH}>\mathrm{RbH}>\mathrm{KH}>\mathrm{NaH}>\mathrm{LiH}}\)
4 \(\mathrm{\mathrm{KH}>\mathrm{NaH}>\mathrm{LiH}>\mathrm{CsH}>\mathrm{RbH}}\)
CHXI09:HYDROGEN

315568 Saline hydrides react explosively with water, such fires can be extinguished by

1 water
2 carbon dioxide
3 sand
4 none of these
CHXI09:HYDROGEN

315569 Ionic hydrides react with water to give

1 Acidic solutions
2 Basic solutions
3 Hydride ions
4 Protons
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CHXI09:HYDROGEN

315566 Metal hydrides are ionic, covalent or molecular in nature. Among LiH, \(\mathrm{\mathrm{NaH}, \mathrm{KH}, \mathrm{RbH}, \mathrm{CsH}}\), the correct order of increasing ionic character is

1 \(\mathrm{\mathrm{LiH}>\mathrm{NaH}>\mathrm{CsH}>\mathrm{KH}>\mathrm{RbH}}\)
2 \(\mathrm{\mathrm{LiH} < \mathrm{NaH} < \mathrm{KH} < \mathrm{RbH} < \mathrm{CsH}}\)
3 \(\mathrm{\mathrm{RbH}>\mathrm{CsH}>\mathrm{NaH}>\mathrm{KH}>\mathrm{LiH}}\)
4 \(\mathrm{\mathrm{NaH}>\mathrm{CsH}>\mathrm{RbH}>\mathrm{LiH}>\mathrm{KH}}\)
NCERT Exemplar
CHXI09:HYDROGEN

315567 The alkali metals form salt like hydrides by direct synthesis at elevated temperatures. The thermal stability of these hydrides decrease in which of the following orders?

1 \(\mathrm{\mathrm{NaH}>\mathrm{LiH}>\mathrm{KH}>\mathrm{RbH}>\mathrm{CsH}}\)
2 \(\mathrm{\mathrm{LiH}>\mathrm{NaH}>\mathrm{KH}>\mathrm{RbH}>\mathrm{CsH}}\)
3 \(\mathrm{\mathrm{CsH}>\mathrm{RbH}>\mathrm{KH}>\mathrm{NaH}>\mathrm{LiH}}\)
4 \(\mathrm{\mathrm{KH}>\mathrm{NaH}>\mathrm{LiH}>\mathrm{CsH}>\mathrm{RbH}}\)
CHXI09:HYDROGEN

315568 Saline hydrides react explosively with water, such fires can be extinguished by

1 water
2 carbon dioxide
3 sand
4 none of these
CHXI09:HYDROGEN

315569 Ionic hydrides react with water to give

1 Acidic solutions
2 Basic solutions
3 Hydride ions
4 Protons
For More Updates join with Us
CHXI09:HYDROGEN

315566 Metal hydrides are ionic, covalent or molecular in nature. Among LiH, \(\mathrm{\mathrm{NaH}, \mathrm{KH}, \mathrm{RbH}, \mathrm{CsH}}\), the correct order of increasing ionic character is

1 \(\mathrm{\mathrm{LiH}>\mathrm{NaH}>\mathrm{CsH}>\mathrm{KH}>\mathrm{RbH}}\)
2 \(\mathrm{\mathrm{LiH} < \mathrm{NaH} < \mathrm{KH} < \mathrm{RbH} < \mathrm{CsH}}\)
3 \(\mathrm{\mathrm{RbH}>\mathrm{CsH}>\mathrm{NaH}>\mathrm{KH}>\mathrm{LiH}}\)
4 \(\mathrm{\mathrm{NaH}>\mathrm{CsH}>\mathrm{RbH}>\mathrm{LiH}>\mathrm{KH}}\)
NCERT Exemplar
CHXI09:HYDROGEN

315567 The alkali metals form salt like hydrides by direct synthesis at elevated temperatures. The thermal stability of these hydrides decrease in which of the following orders?

1 \(\mathrm{\mathrm{NaH}>\mathrm{LiH}>\mathrm{KH}>\mathrm{RbH}>\mathrm{CsH}}\)
2 \(\mathrm{\mathrm{LiH}>\mathrm{NaH}>\mathrm{KH}>\mathrm{RbH}>\mathrm{CsH}}\)
3 \(\mathrm{\mathrm{CsH}>\mathrm{RbH}>\mathrm{KH}>\mathrm{NaH}>\mathrm{LiH}}\)
4 \(\mathrm{\mathrm{KH}>\mathrm{NaH}>\mathrm{LiH}>\mathrm{CsH}>\mathrm{RbH}}\)
CHXI09:HYDROGEN

315568 Saline hydrides react explosively with water, such fires can be extinguished by

1 water
2 carbon dioxide
3 sand
4 none of these
CHXI09:HYDROGEN

315569 Ionic hydrides react with water to give

1 Acidic solutions
2 Basic solutions
3 Hydride ions
4 Protons
NEET DIGITAL LIBRARY