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

If $dx + dy = (x + y)(dx - dy)$,then $\log(x + y)$ is equal to

Which of the following guards the opening of the hepatopancreatic duct into the duodenum?

The standard entropies of $X_2$,$Y_2$,and $XY_3$ are $60$,$40$,and $50 \ J \ K^{-1} \ mol^{-1}$ respectively. For the reaction $\frac{1}{2}X_2 + \frac{3}{2}Y_2 \to XY_3$,$\Delta H = -30 \ kJ$. What will be the temperature in $K$ at equilibrium?

The value of $\lambda$ with $|\lambda| < 16$ such that $2 x^2 - 10 x y + 12 y^2 + 5 x + \lambda y - 3 = 0$ represents a pair of straight lines,is

The cubic equation whose roots are thrice to each of the roots of $x^3+2 x^2-4 x+1=0$ is