Which of the following can be prepared from Sandmeyer's reaction?
(A) Chlorobenzene
(B) Bromobenzene
(C) lodobenzene
(D) Fluorobenzene
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Which of the following reactions are correct?
A. \(R - NO _2 \xrightarrow{ KMnO _4 / KOH } RNH _2\)
B. \(R - NO _2 \xrightarrow{ Sn / HCl } RNH _2\)
C. \(RCN \xrightarrow{ H _2 O / H ^{+}} RCH _2 NH _2\)
D. \(RCN \xrightarrow{ H _2 / Pd } RCH _2 NH _2\)
E. \(RCONH _2 \xrightarrow{\text { (i) } LAIH _4}{ }_4\) (ii) \(H _2 O RCH _2 NH _2\)
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The coordination number \(( CN )\) and oxidation state \(( OS )\) of Co in \(\left[ Co \left( C _2 O _4\right)_3\right]^{3-}\) is.

Read the passage carefully and answer the Questions
The concentration dependence of the rate of a reaction is called the differential rate equation. It is not always convenient to determine the instantaneous rate, as it is measured by calculating the slope of the tangent at point 't' in the concentration vs time plot. This makes it difficult to determine the rate and hence the order of the reaction. This difficulty is overcome by integrating the differential rate equation. This integrated rate equation gives a direct relation between concentrations at different times and the rate constant. The integrated rate equations are different for the reactions having different reaction orders.
A certain amount of \(N _2 O _5\) decomposes to half of its initial amount in 50 minutes.
If the decomposition is a first order reaction, the rate constant of the reaction is.

The reagent involved in the Clemmensen reduction of carbonyl compound is

Which of the following reactions is used to prepare Haloarenes?

Which of the following vitamin is water soluble ?

Arrange the following in increasing order of the mass of the metal deposited when 1 amp of current is passed through their electrolytic solutions for 1 minute
(A). Al (atomic mass = 27 g/mol)
(B). Mg (atomic mass = 24 g/mol)
(C). Ag (atomic mass = 108 g/mol)
(D). Cu (atomic mass = 63.5 g/mol)
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Identify the diagnostic test used to detect the sex of the foetus from the following:

If \(\frac{x^2}{a^2}+\frac{y^2}{b^2}=1\), then \(\frac{d^2 y}{d x^2}\) is equal to

The corner points of the bounded feasible region determined by the system of linear constraints are (0,10), (5, 5), (15, 15), (0, 20). Let \(z=p x+q y\) where \(p, q>0\). Then the condition on p and q so that the maximum value of z occurs at (15, 15) and (0, 20) is

Which of the followings belong to false fruit category?
(A) Apple
(B) Cashew
(C) Strawberry
(D) Orange
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If CAGR stands for Compound Annual Growth Rate, F.V stands for final value of an investment, P.V stands for present value of an investment and \(n\) is the number of years then