Which of the following are extensive properties?

\(\mathrm{SiCl}_4\) on hydrolysis forms ' \(X\) ' and \(\mathrm{HCl}\). Compound ' \(X\) ' loses water at \(1000^{\circ} \mathrm{C}\) and gives ' \(Y\) '. Compounds ' \(X\) ' and ' \(Y\) ' respectively are

The solubility ' \(\mathrm{S}\) ' of \(\mathrm{Zr}_3\left(\mathrm{PO}_4\right)_4\) in terms of its solubility product, \(\mathrm{K}_{\mathrm{sp}}\) is

Which sol is used as intramuscular injection?

The oxidation number of an element in a compound is evaluated on the basis of certain rules. Which of the following rules is not correct?
1. The oxidation number of hydrogen is always +1.
2. The algebraic sum of all the oxidation numbers of all elements in a compound is zero.
3. An element in the free or the uncombined state bears oxidation number zero.
4. In all its compounds, the oxidation number of fluorine is -1.

Which of the following is an example of interstitial hydride?

(i) \(\mathrm{H}_3 \mathrm{PO}_4(a q) \rightleftharpoons \mathrm{H}^{+}(a q)+\mathrm{H}_2 \mathrm{PO}_4^{-}(a q)\)
(ii) \(\mathrm{H}_2 \mathrm{PO}_4^{-}(a q) \rightleftharpoons \mathrm{H}^{+}(a q)+\mathrm{HPO}_4^{2-}(a q)\)
(iii) \(\mathrm{HPO}_4^{2-}(a q) \rightleftharpoons \mathrm{H}^{+}(a q)+\mathrm{PO}_4^{3-}(a q)\)
The equilibrium constants for the above reactions at a certain temperature are \(K_1, K_2\) and \(K_3\) respectively. The equilibrium constant for the reaction \(\mathrm{H}_3 \mathrm{PO}_4(a q) \rightleftharpoons 3 \mathrm{H}^{+}(a q)+\mathrm{PO}_4^{3-}(a q)\) in terms of \(K_1, K_2\) and \(K_3\) is

Consider a circular ring of radius \(1,4 \mathrm{~cm}\) lying on the surface of a liquid. If a vertical force of \(0.022 \mathrm{~N}\) greater than the weight of the ring is required to lift this ring from the liquid surface, then the surface tension of the liquid is

p-Chlorotoluene is the major product in which of the following reactions ?

Let the equation \(\mathrm{ax}^2+2 \mathrm{hxy}+\mathrm{by}^2+2 \mathrm{gx}+2 \mathrm{fy}+\mathrm{c}=0\) represent a point circle other than the origin. Then which one of the following conditions must hold?

The centre of the circle that passes through the point \((0,1)\) and touches the curve \(y=x^2\) at \((2,4)\) is

The coefficient of \(x^{10}\) in the expansion of \(\left(x+\frac{2}{x}-5\right)^{12}\) is

\(\Delta W=0\), for the process