Asthma patients use a mixture of $.....$ for respiration.

  • A
    $O_2$ and $N_2O$
  • B
    $O_2$ and $He$
  • C
    $O_2$ and $NH_3$
  • D
    $O_2$ and $CO$

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Similar Questions

Match the correct option from Column-$A$ and Column-$B$.
Column-$A$ Column-$B$
$(1)$ Ionic hydride $(p)$ $BeH_2$
$(2)$ Interstitial hydride $(q)$ $TiH$
$(3)$ Electron-precise hydride $(r)$ $CH_4$
$(4)$ Electron-rich hydride $(s)$ $H_2O$
$(t)$ $B_2H_6$

Which of the following will not be reduced by $H_2$?

Which position for hydrogen explains all its properties?

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$(iv)$ $B_2H_6$

Which of the following statements is incorrect?

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