When \(10 \mathrm{~g}\) of copper and \(10 \mathrm{~g}\) of iodine are mixed, calculate the theoretical yield of CuI according to the equation,
\(2 \mathrm{Cu}+\mathrm{I}_2 \longrightarrow 2 \mathrm{Cul}\)

Dipole moment order of which of the following pairs of molecules is not correct?

The dipole-dipole interaction energy between polar molecules in the solid state will be proportional to ...... [if \(r\) denotes the distance between polar molecules]

Which of the following is the correct order of increasing number of lone pair of electrons on the central atom?

\(\mathrm{K}_{\mathrm{c}}\) for the following reaction is 99.0
\(\mathrm{A}_2(\mathrm{~g}) \stackrel{\mathrm{T}(\mathrm{~K})}{\rightleftharpoons} \mathrm{B}_2(\mathrm{~g})\)
In a one litre flask, 2 moles of \(\mathrm{A}_2\) was heated to \(\mathrm{T}(\mathrm{K})\) and the above equilibrium is reached. The concentrations at equilibrium of \(\mathrm{A}_2\) and \(\mathrm{B}_2\) are \(\mathrm{C}_1\left(\mathrm{~A}_2\right)\) and \(\mathrm{C}_2\left(\mathrm{~B}_2\right)\) respectively. Now, one mole of \(\mathrm{A}_2\) was added to flask and heated to \(\mathrm{T}(\mathrm{K})\) to establish the equilibrium again. The concentrations of \(\mathrm{A}_2\) and \(\mathrm{B}_2\) are \(\mathrm{C}_3\left(\mathrm{~A}_2\right)\) and \(\mathrm{C}_4\left(\mathrm{~B}_2\right)\) respectively. What is the value of \(\mathrm{C}_3\left(\mathrm{~A}_2\right)\) in \(\mathrm{mol}^{-1}\) ?

Given below are two statements.
Statement I: Liquids A and B form a non-ideal solution with negative deviation. The interactions between \(A\) and B are weaker than \(\mathrm{A}-\mathrm{A}\) and \(\mathrm{B}-\mathrm{B}\) interactions
Statement II: In reverse osmosis, the applied pressure must be higher than the osmotic pressure of solution
The correct answer is

The molar conductivities of \(\mathrm{KCl}, \mathrm{NaCl}\) and \(\mathrm{KNO}_3\) are 100,120 and \(90 \mathrm{~cm}^2 \mathrm{~mol}^{-1}\),
respectively. The molar conductivity of \(\mathrm{NaNO}_3\) would be .......... cm \(\mathrm{mol}^{-1}\).

The conductivity of a conductor decreases with temperature because, on heating:

A \(0.5 \mathrm{~kg}\) block of brass (density \(=8 \times 10^3 \mathrm{~kg} \mathrm{~m}^{-3}\) ) is suspended from a string. What is the tension in the string if the block is completely immersed in water? \(\left(g=10 \mathrm{~ms}^{-2}\right)\)

Which of the following is a correct statement?

Which of the following compound has reducing character?

If the coordinate axes are rotated through an angle \(\frac{\pi}{6}\) about the origin, then the transformed equation of \(\sqrt{3} x^2-4 x y+\sqrt{3} y^2=0\) is

Assertion (A)
Angular speed, linear speed and kinetic energy change with time but angular momentum remains constant for a planet orbiting the sun.
Reason (R) Angular momentum is constant as no torque acts on the planet.