Which of the following is commonly used in a laboratory desiccator?

  • A
    Anhydrous $Na_2CO_3$
  • B
    Anhydrous $CaCl_2$
  • C
    Dry $NaCl$
  • D
    None of these

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The ionization of a hydrogen atom gives rise to:

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

How can the production of hydrogen from water gas be increased by using the water gas shift reaction?

What are metallic or interstitial hydrides? How do they differ from molecular hydrides?

Match the correct option from Column $-A$ and Column $-B$.
Column $-A$ Column $-B$
$(1)$. $VH$ $(a)$. Ionic hydride
$(2)$. $HF$ $(b)$. Metallic hydride
$(3)$. $MgH_2$ $(c)$. Electron precise hydride
$(4)$. $B_2H_6$ $(d)$. Molecular hydride

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