Which of the following is not an air pollutant?
- A$N_2$
- B$N_2O$
- C$NO$
- D$CO$
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Similar Questions
Which of the following values indicates hypertension?
Match the following molecules in Column-$I$ with the number of lone pairs on their central atom in Column-$II$.
Column-$I$ (Molecules) Column-$II$ (Number of lone pairs on central atom) $A$. $NH_3$ $1$. Two $B$. $H_2O$ $2$. Three $C$. $XeF_2$ $3$. Zero $D$. $CH_4$ $4$. Four $5$. One
| Column-$I$ (Molecules) | Column-$II$ (Number of lone pairs on central atom) |
|---|---|
| $A$. $NH_3$ | $1$. Two |
| $B$. $H_2O$ | $2$. Three |
| $C$. $XeF_2$ | $3$. Zero |
| $D$. $CH_4$ | $4$. Four |
| $5$. One |
The number of solutions of the system of equations $2x + y - z = 7$,$x - 3y + 2z = 1$,and $x + 4y - 3z = 5$ is
$A$ gaseous mixture consists of $16\,g$ of helium and $16\,g$ of oxygen. The ratio $(C_p/C_v)$ of the mixture is
$1+\frac{1+2}{2 !}+\frac{1+2+2^2}{3 !}+\ldots$ is equal to
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