Explore topic-wise InterviewSolutions in Current Affairs.

Which of the following is most stable?

In a $2.4\times {10}^{-3}M$ Hydrogen bromide ($HBr$) solution, find the concentration of $O{H}^{-}$ ?

Question 02
On dissolving sugar in water at room temperature solution feels cool to touch. Under which of the following cases dissolution of sugar will be most rapid?
(a) Sugar crystals in cold water (b) Sugar crystals in hot water
(b) Powdered sugar in cold water (d) Powdered sugar in hot water

The correct increasing bond angle among $B{F}_3,P{F}_3$ and $Cl{F}_3$ follows the order

Which of the following statements related to the modern periodic table is incorrect?
(a) The p-block has 6 columns, because a maximum of 6 electrons can occupy all the orbitals in a p-shell.
(b) The d-block has 8 columns, because a maximum of 8 electrons can occupy all the orbitals in a d-subshell.
(c) Each block contains a number of columns equal to the number of electrons that can occupy that subshell.
(d) The block indicates value of azimuthal quantum number (l ) for the last subshell that received electrons in building up the electronic configuration.

What amount of heat will be generated in the circuit shown in figure, after the switch '$\text{S}$' is shifted from position '$1$' to position '$2$' $?$

The electronic configuration with maximum exchange energy will be

If a non-volatile solute (urea) needs to be dissolved in $100g$ of water in order to decrease the vapour pressure of water by $25\%$, then what will be the molality of solution?

Identify the product of the following condensation reaction

If rice is cooked in a pressure cooker on the Siachen glacier, at sea beach, and on Deccan plain, which of the following is correct about the time taken for cooking rice?

Pthalamide on treatment with ethanolic potassium hydroxide forms potassium salt of phthalimide which on heating with alkyl halide followed by alkaline hydrolysis produces the corresponding amine. This reaction is known as:

In the disproportionation reaction:

$H_{3}P{O}_2\to P{H}_3+H_{3}P{O}_3$

The $n-$factor of $H_{3}P{O}_2$ is:

Which of the following statements is correct for the reaction $CO\left(g\right)+\frac{1}{2}{O}_2\left(g\right)\to C{O}_2\left(g\right)$ at constant temperature and pressure?

Structure shown here represents:

What do you understand by the term "non-stoichiometric hydrides"? Do you expect this type of the hydrides to be formed by alkali metals? Justify your answer.

What happens when

(i) n-butyl
chloride is treated with alcoholic KOH,

(ii)
bromobenzene is treated with Mg in the presence of dry ether,

(iii)
chlorobenzene is subjected to hydrolysis,

(iv) ethyl
chloride is treated with aqueous KOH,

(v) methyl
bromide is treated with sodium in the presence of dry ether,

(vi) methyl
chloride is treated with KCN.

in the equilibrium mixture ${CaCO}_3$ --------CaO+${CO}_2$ pressure of ${CO}_2$ at 27 degree is 2 atm what will be the pressure of ${CO}_2$ when 2 moles of ${CO}_2$ are added into equilibrium mixture

What is the theoretical variation of COP of a carnot heat pump used for heating?

pH of a saturated solution of $Ba(OH{)}_2$ is 12. The value of solubility product $\left(K_{sp}\right)ofBa(OH{)}_2$ is