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Which graph represents the variation of physical adsorption with temperature?

Which of the following can be a method of preparation of a carbonate?

Which of the following can undergo nucleophilic substitution reaction?

5.6 liter of helium gas at STP is adiabatically compressed to 0.7 liter. Taking the initial temperature to be $T_1$, the work done in the process is

What happens to the vapour pressure when a) volatile solute dissolves in the liquid b) the dissolved solute is non volatile

When heated in air, the alkali metals form various oxides. Mention the oxides formed by Li, Na and K.

(A),(B) and (C) are three non-cyclic functional isomers of a carbonyl compound with molecular formula $C_4{H}_{8}O.$ Isomers (A) and (C) give positive Tollens' test whereas isomer (B) does not give Tollens' test but gives positive Iodoform test. Isomers (A) and (B) on reduction with Zn(Hg)/conc. HCI give the same product (D).

(a) Write the structures of (A),(B),(C) and (D).

(b) Out of (A), (B) and (C) isomers, which one is least reactive towards addition of HCN?

R-X can be reduced to R-H by Zn - Cu couple / C₂H₅OH as a result of:

Two closed bulbs of equal volumes (V) containing an ideal gas initially at pressure $p_i$ and temperature $T_1$ are

connected through a narrow tube of negligible volume as shown in the figure below. The temperature of one of the bulbs is then raised to $T_2$. The final pressure $p_f$ is:

Which of the following will result in Anti-bonding Molecular Orbitals?

Question 13

Hydrogen peroxide is obtained by the electrolysis of .......

(a) water (b) sulphuric acid

(c) hydrochloric acid (d) fused sodium peroxide

Among the following the most basic compound is

Assertion and Reason
In the following questions a statement of assertion (A) followed by a statement reason (R) is given. Choose the correct answer out of the following choice..
(a) Assertion and reason both are correct statements but reason does not explain assertion.
(b) Assertion and reason both are correct and reason explains asssWon.
(c) Both assertion and reason are Wrong statements.
(d) Assertion is correct statement reason is wrong statement.
(e) Assertion is wrong statement reason is correct statement.

Assertion (A) Non-competitive inhibitor inhibits the catalytic activity of enzyme by binding with its active site.
Reason (R) Non-competitive inhibitor changes the shape of the active site in such a way that substrate can't recognise it.

The Sulphate of a metal contains 20% metal. This sulphate is isomorphous with zinc sulphate hepta hydrate. The atomic mass of the metal is

A tertiary alcohol H upon acid catalysed dehydration gives a product I. Ozonolysis of I leads to compounds J and K. Compound J upon reaction with KOH gives benzyl alchhol and a compound L, whereas K on reaction with KOH gives only M.

Compound H is formed by the reactions of:

Number of sodium atom present in $8\text{g}$ of sodium is $X\times {10}^{23}$, then the value of $X$ is:

[Take $N_A=6\times {10}^{23}$]

Total number of compounds having at least one bridging oxo group among the molecules given below is:

$N_2{O}_3,N_2{O}_5,P_4{O}_6,P_4{O}_7,H_4{P}_2{O}_5,H_2{S}_2{O}_3,H_2{S}_2{O}_5$

Deficiency of which of the following oxide causes reduction in setting time of cement :

Which among the following is liberated when citrate is converted to cis-aconitate?

Select the pair of chain isomers.