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Among the following mixture of gases, Dalton's law of partial pressures will not apply to which pair of gases?

The group reagent for group V radicals is

In a sample of $H-$atoms,elelctrons de-excite from a level $n$ to $1$.The total number of lines belonging to Balmer series are two. If the elelctrons are ionised from level n by photons of energy $13\text{eV}$. Then the kinetic energy of the ejected photoelelctrons will be:

Which product is formed when diethyl ether is heated with concentrated HI?

How many significant figures are there in 10.1000 g?

The equilibrium constants for the reactions are:

$H_{3}P{O}_4\stackrel{K_1}{\rightleftharpoons }{H}^{+}+H_{2}P{O}_4^{-};K_1{H}_{2}P{O}_4^{-}\stackrel{K_2}{\rightleftharpoons }{H}^{+}+HP{O}_4^{2-};K_{2}HP{O}_4^{2-}\stackrel{K_3}{\rightleftharpoons }{H}^{+}+P{O}_4^{3-};K_3$

The equilibrium constant for, $H_{3}P{O}_4\rightleftharpoons 3H^{+}+P{O}_4^{3-}$ will be:

Identify X and Y respectively.

$2CH\equiv CH\underset{343K}{\overset{X}{\to }}C{H}_2=CH-CH=C{H}_2\stackrel{HCl}{\to }Y$

Let mixture be prepared by mixing $n_A$ moles of liquid A and $n_B$ moles of liquid B. Let $P_A$ and $P_B$ be the partial pressures of two constituents and $P_A^{\circ }$ and $P_B^{\circ }$ are the vapour pressures in pure state. Which of the following relations are true?

The resistance of a 0.1 $N$ solution of a salt is found to be $2.5\times {10}^3$ $ohm$. The equivalent conductance of the solution is: (Cell constant = $1.15c{m}^{-1}$)

There is no Sulphur-Sulphur linkage in:-

In an isobaric process, the ratio of heat supplied to the system (dQ) and work done by the system (dW) for diatomic gas is

For a multielectron system, which of the following is/are the correct sequence of energy of orbitals?

The hybridisation present in $C_2{H}_2$ is

The correct order of stabilities of the following carbocations is:

From the reactions shown, A and B respectively are:

If the energy of a particle is reduced to one fourth, then the percentage increase in its de-Broglie wavelength will be-

Does her father believe her story?

Monohalides + alc KOH gives

Phenol on treatment with $C{O}_2$ in the presence of $NaOH$ fallowed by acidification produces compound $X$ as the major product. $X$ on treatment with $(C{H}_{3}CO{)}_{2}O$ in the presence of catalytic amount of $H_{2}S{O}_4$ produces:

Which of the following is an example of condensation polymer?

Question 21

The electronic configuration of the outer most shell of the most electronegative elements is

(a) $2s^{2}2p^5$

(b) $3s^{2}3p^5$

(c) $4s^{2}4p^5$

(d) $5s^{2}5p^5$

What will be the $pH$ and $\%\alpha$ (degree of hydrolysis) respectively for the salt of weak acid and weak base $\left(BA\right)$ of $0.1M$ concentration?

Given : $K_a$ for $HA={10}^{-6}$ and $K_b$ for $BOH={10}^{-6}$

Which of the following complex has different hybridisation compared to others?