Which property of hydrogen distinguishes it from alkali metals?

  • A
    Its electropositive character
  • B
    Its affinity for non-metals
  • C
    Its reducing character
  • D
    Its non-metallic character

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The hydrides of which group elements are examples of electron-precise hydrides?

Which of the following processes produces hydrogen with the highest purity $(99.9\%)$?

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Match the following types of hydrides in List-$I$ with their examples in List-$II$.
List-$I$ (Type of hydride)List-$II$ (Example)
$(A)$ Electron precise$(i)$ $SiH_4$
$(B)$ Saline$(ii)$ $H_2O$
$(C)$ Electron deficient$(iii)$ $MgH_2$
$(D)$ Electron rich$(iv)$ $B_2H_6$

How many isotopes of Hydrogen are there? Give their names.

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