Which of the following cancers is caused by the consumption of tobacco?

If $y = (\cos x^2)^2$,then $\frac{dy}{dx}$ is equal to:

The total charge induced in a conducting loop when it is moved in a magnetic field depends on

If $f: R \rightarrow R$ is defined by $f(x)=x-[x]-\frac{1}{2}$ for $x \in R$,where $[x]$ is the greatest integer not exceeding $x$,then $\{x \in R: f(x)=\frac{1}{2}\}$ is equal to :

If the foot of the perpendicular from $(0,0,0)$ to a plane is $(1,2,3)$,then the equation of the plane is

Oxidation states of $P$ in $H_4P_2O_5, H_4P_2O_6, H_4P_2O_7$ are respectively: