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A pair of stereoisomers might be classified in various ways. Which of the following statement are true with respect to pairs of stereoisomers?

(a) They might be configurational isomers

(b) They might be diastereomers

(c) They might be constitutional isomers

(d) They might be tautomers

(e) They might be conformational isomers

(f) They might be enantiomers

(g) They might be positional isomers

The correct set of quantum numbers among the following is:

Which of the following reagents gives different stereo isomeric products with cis but-2-ene and trans but-2-ene?

Arrange the molecules in the increasing order of bond angle.

Define
the following terms:

(i)
Mole fraction

(ii)
Molality

(iii)
Molarity

(iv)
Mass percentage.

If metallic atoms of mass 197 and radius 166 pm are arranged in ABCABC fashion then what is the surface area of each unit cell?

In the hydrocarbon $\underset{\left(1\right)}{C}{H}_2=\underset{\left(2\right)}{C}H-\underset{\left(3\right)}{C}\equiv CH$, the state of hybridisation of carbons 1, 2 and 3 respectively are:

Acetic acid is treated with $Ca\left(OH{)}_2\right)$ and the product so obtained is subjected to dry distillation. The final product is

Which of the following is not a disproportionate reaction?

Which of the following statements is not true about enzyme inhibitors?
(a) Inhibit the catalytic activity of the enzyme
(b) Prevent the binding of substrate
(c) Generally a strong covalent bond is formed between an inhibitor and an enzyme
(d) Inhibitors can be competitive or non-competitive

Electrolysis is carried out in three cells : (A) - 1.0$MCuS{O}_4,$ Pt electrodes; (B) - 1.0 $MCuS{O}_4,$, Copper electrode; (C) - 1.0 $MKCl$, Pt electrodes. If the volume of electrolytic solution is maintained constant in each of the cells, which is correct set of pH changes in (A), (B) and (C) cells respectively?

Which one of the following compound will give (d) and (l) form in $S_{N}1$ reaction (as major product)?

If the radius ratio is between 0.225 - 0.414, what will be the type of void present. What will be the coordination number?

Which of the following compounds do not undergo aldol condensation?

Silver crystallises in a face-centred cubic unit cell. The density of $Ag$ is $10.5gc{m}^{-3}$. Calculate the volume of unit cell (in $c{m}^3$).

Arrange the following in increasing order of stability.

The halide which undergoes nucleophilic substitution most readily is

Match the List-I with List – II

$\begin{array}{cccc}& \text{List - I}& & \text{List - II}\\ \text{(P)}& \text{Chloroform-methyl alcohol}& \text{(1)}& \text{Enthalpy change +ve}\\ \text{(Q)}& \text{Methyl alcohol-ethyl alcohol}& \text{(2)}& \text{Enthalpy change -ve}\\ \text{(R)}& \text{Ethyl alcohol-water}& \text{(3)}& \text{Entropy change +ve}\\ \text{(S)}& \text{Water-nitric acid}& \text{(4)}& \text{Change in volume,}\Delta V=+ve\\ & & \text{(5)}& \text{Change in volume,}\Delta V=-ve\end{array}$

Match each product in LIST-I with one or more reaction in LIST-II and choose the correct option.

A diatomic gas $(\gamma =\frac{7}{5})$ is compressed to $\frac{1}{32}$ times of its initial volume adiabatically and reversibly. If its initial pressure is $2P_0$, its new pressure will be :

In which of the following case, the product of oxidative and reductive ozonolysis is/are different?