One of the major components of the cell wall of most fungi is

The equation $\sqrt{3} \sin x + \cos x = 4$ has

Wood charcoal is used in gas masks because ........

$A$ variable circle passes through the fixed point $A(p, q)$ and touches the $x$-axis. The locus of the other end of the diameter through $A$ is

If the position vectors of $A, B$ and $C$ are respectively $2 \hat{i}-\hat{j}+\hat{k}, \hat{i}-3 \hat{j}-5 \hat{k}$ and $3 \hat{i}-4 \hat{j}-4 \hat{k}$,then $\cos ^2 A$ is equal to

Which of the following cannot give iodometric titrations?