Reaction of Phenol with conc. \(HNO _3\) gives

Number of hydrogen bond formed between adenine and thymine to connect each other is /are

Which of the following amines can be prepared by Gabriel synthesis ?
(A) Isobutyl amine
(B) 2-Phenyl ethylamine
(C) N-Methyl benzyl amine
(D) Aniline
Choose the correct answer from the options given below:

The electronic configuration of the last three orbitals in cerium (At. No. 58) in ground state is:

Read the passage carefully and answer the questions
The transition metals and their compounds are known for their catalytic activity. This activity is ascribed to their ability to adopt multiple oxidation states and to form complexes. Vanadium(V) oxide (in Contact Process), finely divided iron, and nickel (in Catalytic Hydrogenation) are some of the examples. Catalysts at a solid surface involve the formation of bonds between reactant molecules and atoms of the surface of the catalyst (first row transition metals utilise 3d and 4s electrons for bonding). This has the effect of increasing the concentration of the reactants at the catalyst surface and also weakening of the bonds in the reacting molecules (the activation energy is lowering). Also because the transition metal ions can change their oxidation states, they become more effective as catalysts.
In the Wacker process the oxidation of ethene to ethanal is catalysed by _______

Which of the following statement is/are correct for complex \([NiCl_4]^{2-}\) ?
(A) Ni has oxidation state +2
(B) Cl is a weak field ligand
(C) Compound is paramagnetic
(D) \(d s p^2\) hybridisation
(E) Low spin complex
Choose the correct answer from the options given below :

"Match the reaction order with their examples in List-II.

List-I	List-II
(A) First order reaction	(I) \(\text{C}_{12}\text{H}_{22}\text{O}_{11} + \text{H}_2\text{O} \xrightarrow{\text{H}^+} \text{C}_6\text{H}_{12}\text{O}_6 + \text{C}_6\text{H}_{12}\text{O}_6\)
(B) Zero order reaction	(II) \(\text{N}_2\text{O}_5 \rightarrow 2\text{NO}_2 + \frac{1}{2}\text{O}_2\)
(C) Pseudo first order reaction	(III) \(\text{CH}_3\text{COOC}_2\text{H}_5 + \text{NaOH} \rightarrow \text{CH}_3\text{COONa} + \text{C}_2\text{H}_5\text{OH}\)
(D) Second order reaction	(IV) \(2\text{NH}_3\text{(g)} \xrightarrow{\text{1130 K}\text{ Pt}} \text{N}_2\text{(g)} + 3\text{H}_2\text{(g)}\)

Choose the correct answer from the options given below:"

The process of copying genetic information from one strand of DNA into RNA is termed as

Let \(X\) denotes the number of hours a person uses a mobile and the probability distribution of \(X\) is as :

X	0	1	2	3	4
P(X)	0.1	K	2K	2K	K

Then the value of \(K\) is

The value of \(\tan ^{-1}\left(\tan \frac{3 \pi}{4}\right)+2 \cos ^{-1}\left(\cos \frac{7 \pi}{6}\right)\) is:

A particle moves along the curve \(6 y=x^3+2\). The point(s) on the curve at which the \(y\)-coordinate is changing 8 times as fast as the \(x\)-coordinate are:

If \(f: R \rightarrow R\) be given by \(f(x)=\left(3-x^3\right)^{\frac{1}{3}}\), then (fof) (x) is:

The greatest integer function \(f: R \rightarrow R\) given by f(x) = [x] is: