Which of the following are the characteristics of chemisorption?
A. Highly specific in nature
B. Low activation energy
C. High heat of adsorption
D. Reversible in nature
Choose the correct answer from the options given below:

Which of the following statements is correct for enantiomers?
(A) They exist as a pair of non-superimposable mirror images.
(B) They possess identical physical properties.
(C) They differ with respect to the rotation of plane polarized light.
(D) A mixture containing a 1:1 ratio of enantiomers is optically inactive.
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Identify the product \([\text{B}]\) in the following reaction.
\(\text{CH}_3\text{CH}_2-\text{C} \equiv \text{CH} + \text{HCl} \rightarrow \text{A} \xrightarrow{\text{HI}} [\text{B}]\)

The process used for the conversion of sugar into Ethanol is :

Arrange the following oxides in the order of their basic strength:
(A) \(V_2O_5\)
(B) \(V_2O_3\)
(C) \(V_2O_4\)
(D) \(Mn_2O_7\)
Choose the Correct answer from the options given below:

Read the passage carefully and answer the questions:
The degeneracy of the \(d\) orbitals has been removed due to ligand electron-metal electron repulsions in the octahedral complez to yield three orbitals of lower energy, \(t_{2 g}\) set and two orbitals of higher energy, \(e_g\) set. This splitting of the degenerate levels due to the presence of ligands in a definite geometry is termed as crystal field splitting and the energy separation is denoted by \(\Delta_0\). Thus energy of the two \(e_g\) orbitals will increase by \((3 / 5) \Delta_0\) and that of three \(t_{2 g}\) will decrease by \((2 / 5) \Delta_0\). The crystal field splitting \(\Delta_{\circ}\) depends upon the field produced by the ligand and charge on the metal ion. Some ligands are able to produce strong fields, in which case the splitting will be large, whereas others produce weak fields and consequently result in small splitting of \(d\) orbitals. Relative magnitude of crystal field splitting energy \(\Delta_{\circ}\) and pairing energy, \(P\) (energy required for electron
pairing in a single orbital) determine the formation of low spin ( \(\Delta_0>P\) ) or high spin ( \(\Delta_0<P\) ) complex. In tetrahedral coordination entity formation, the \(d\)-orbital splitting is inverted and is smaller as compared to the octahedral field splitting. The crystal field theory attributes the colour of the complex to \(d-d\) transition of the electron. The colour of the coordination compounds depends on the crystal field splitting. In the absence of ligand, crystal field splitting does not occur and hence the substance is colourless.
What will be the crystal field splitting energy for tetrahedral \(\left[ CoCl _4\right]^{2-}\) if its value for octahedral \(\left[ CoCl _6\right]^{4-}\) is \(18,000 cm^{-1}\) ?

Which of the following reagent(s) is required for the conversion of Benzene to methyl benzoate?
(A) \(Br 2 / FeBr 3\)
(B) Mg, dry Ether
(C) \(CO 2, H3O+\)
(D) Methanol, Conc. H2SO4
Choose the correct answer from the options given below :

A potential difference of 3 V is applied across a conductor of resistance \(1.5 \Omega\).
The number of electrons flowing through it in one second would be:
(Given charge of an electron, \(e=1.6 \times 10^{-19} C\) )

Which one of the following is most widely accepted method of contraception in India?

The value of the determinant \(\left|\begin{array}{ccc}85 & 15 & 30 \\ 1 & 3 & 4 \\ 17 & 3 & 6\end{array}\right|\) is:

The cell \(emf\) depends on:

The value of the definite integral \(I=\int_{-1}^1 \frac{1}{1+\sqrt{e^x}} d x\) is :

The marginal cost of production of \(X\) units of a commodity is \(56+\frac{3}{2} x\).
It is known that fixed costs are Rs.115.
Then the total cost of producing 50 units is :-