Which of the following substances will absorb oxygen rapidly?

  • A
    Alkaline solution of pyrogallol
  • B
    Concentrated $H_2SO_4$
  • C
    Lime water
  • D
    Alkaline solution of $CuSO_4$

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Similar Questions

Hydrogen is

Water gas is

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$(iv)$ $B_2H_6$

Under what conditions can hydrogen behave as a metal?

In the reaction $2X + B_2H_6 \rightarrow [BH_2(X)_2]^+ [BH_4]^-$,the amine$(s)$ $X$ is(are):

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