\(0.16 \mathrm{~g}\) of an organic compound containing sulphur produces \(0.233 \mathrm{~g}\) of \(\mathrm{BaSO}_4\). Percentage of sulphur in the compound is

An oxide of an element is a gas and dissolves in water to give an acidic solution. The element belongs to

The concentration of an organic compound in chloroform is \(6.15 \mathrm{~g}\) per \(100 \mathrm{~mL}\) of solution. A portion of this solution in a \(5 \mathrm{~cm}\) polarimeter tube causes an observed rotation of \(-1.2^{\circ}\). What is the specific rotation of the compound?

The standard reduction potentials of \(\mathrm{Zn}^{2+}\left|\mathrm{Zn}, \mathrm{Cu}^{2+}\right| \mathrm{Cu}\) and \(\mathrm{Ag}^{+} \mid \mathrm{Cu}\) and \(\mathrm{Ag}^{+} \mid \mathrm{Ag}\) are respectively \(-0.76,0.34\) and \(0.8 \mathrm{~V}\). The following cells were constructed : (1) \(\mathrm{Zn}\left|\mathrm{Zn}^{2+}\right|\left|\mathrm{Cu}^{2+}\right| \mathrm{Cu}\) (2) \(\mathrm{Zn}\left|\mathrm{Zn}^{2+}\right|\left|\mathrm{Ag}^{+}\right| \mathrm{Ag}\) (3) \(\mathrm{Cu}\left|\mathrm{Cu}^{2+} \| \mathrm{Ag}^{+}\right| \mathrm{Ag}\) What is the correct order of \(E_{\text {cell }}^{\circ}\) of these cells?

Identify what is \(\mathrm{Y}\) in the following reaction sequence?

Which among the following is the strongest acid?

The most effective coagulating agent among the options for ${\mathrm{Sb}}_2{\mathrm{S}}_3$ sol is

An ideal gas has molar heat capacity \(C_V\) at constant volume. The gas undergoes a process where in the temperature changes as \(T=T_0\left(1+\alpha V^2\right)\), where, \(T\) and \(V\) are temperature and volume respectively, \(T_0\) and \(\alpha\) are positive constants. The molar heat capacity \(C\) of the gas is given as \(C=C_V+R f(V)\), where, \(f(V)\) is a function of volume. The expression for \(f(V)\) is

Carrier waves are used for communicating signals over long distance, because

The number of real values of \(t\) such that the system of homogeneous equations
\[
\begin{aligned}
t x+(t+1) y+(t-1) z & =0 \\
(t+1) x+t y+(t+2) z & =0 \\
(t-1) x+(t+2) y+t z & =0
\end{aligned}
\]
has non-trivial solutions is

For \(x \in I R, 3 \cos (4 x-5)+4\) lies in the interval

Two compounds form an ideal solution at room temperature. Which of the following are correct for this ideal solution? (A) \(\Delta G=(+v e)\) (B) \(\Delta S=(+\) ve) surrounding (C) \(\Delta S=(+v e)\) system (D) \(\Delta_{\max } H=0\)

\(\lim _{x \rightarrow 3 / 2} \frac{\left(4 x^2-6 x\right)\left(4 x^2+6 x+9\right)}{\sqrt[3]{2 x}-\sqrt[3]{3}}=\)