Arrange the following in increasing order of basic strength in aqueous solution :
(A) \(C _6 H _6 NH _2\)
(B) \(C _2 H _5 NH _2\)
(C) \(\left( C _2 H _6\right)_2 NH\)
(D) \(NH _3\)
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Which of the following statement(s) is/are correct with reference to electrophilic aromatic substitution of \(\text{C}_6\text{H}_5\text{Cl}\)?
(A) Cl acts as an activating and o/p directing group
(B) Cl acts as a deactivating and o/p directing group
(C) acts as an activating and m directing group
(D) Cl acts as a deactivating and m directing group
(E) Presence of \(\text{NO}_2\) at p-position facilitates the reactions
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In aldehydes, the carbonyl group is bonded to a carbon and hydrogen, while in ketones it is bonded to two carbon atoms. The carbonyl compounds in which carbonyl group is bonded to oxygen are known as carboxylic acid and their derivatives.
Arrange the following steps of Aldol condensation in the correct order of their occurance.
A. Abstraction of proton
B. Protonation
C. Formation of Enolate
D. Nucleophilic Addition
E. Elimination
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Read the passage carefully and answer the Questions
Carbonyl compounds such as aldehydes, ketones, and carboxylic acids play an important role in the biochemical process of plants and animal kingdom.
Many aldehydes and ketones find applications in dye, perfumery and other industries.
The carbonyl carbon atom is \(s p^2\)-hybridized forming three sigma and one pi-bond with oxygen.
C-O bonds are polar bond due to high electronegativity of oxygen than carbon.
Hence the carbonyl carbon behaves as an electrophilic center and oxygen as a nucleophilic centre.
Primary and secondary alcohols yield aldehydes and ketones respectively upon oxidation with variety of oxidizing agents.
The boiling points of aldehydes and ketones differ from hydrocarbons and ethers.
Aldehydes and ketones undergo nucleophilic addition reaction due to presence of electrophilic carbonyl carbon.
Nucleophile and a proton add across the carbon oxygen double bond.
Formalin which is used to preserve biological specimen is an aqueous solution of

Answer the question on the basis of passage given below :
Nitrogen differs from rest of the members of group 15 due to its small size, high electronegativity, high ionization enthalpy and non-availability of d orbitals. Nitrogen has unique ability to form pa - pa multiple bonds with itself and with other elements having small size and high electronegativity. Heavier elements of this group do not form pa - pr bonds as their atomic orbitals are so large and diffuse that they cannot have effective overlapping.
Group 15 elements forms oxides of type \(E _2 O _3\). Acidic oxides are formed by
A. Bi
B. Sb
C. P
D. As
E. N
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Acidified potassium dichromate oxidises iodides to \(\underline{X}\), sulphides to \(\underline{Y}\) and tin (II) to \(\underline{Z}\). \(X\), \(Y\) and \(Z\) respectively are:

The product A is
\(\text{C}_6\text{H}_5\text{NH}_2 + \text{CHCl}_3 + \text{KOH (alc.)} \to \text{A}\)

The correct cell representation for the following reaction is
\(Mg(s)+2 Ag^{+}(0.0001 M) \rightarrow Mg^{2+}(0.130 M)+2 Ag(s)\)

Match List-I with List-II

List-I (Vitamins)	List-II (Diseases)
(A) Vitamin K	(I) Pernicious anaemia
(B) Vitamin A	(II) Osteomalacia
(C) Vitamin B12	(III) Increase blood clotting time
(D) Vitamin D	(IV) Night blindness

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A random variable X has the following probability distribution :

x	1	2	3	4	5
\(P ( X = x )\)	k	k	3k	\(2 k^2\)	\(4 k^2\)

Based on the above information, the value of ' \(K\) ' is :

The integral \(\int e^x\left(\log x+\frac{1}{x^2}\right) d x\) equals for some arbitrary constant k

A radio wave of wavelength 300 m can be transmitted by a transmission center. A condenser of capacity \( 2.5 \mu F \) is available. The inductance of the required coil at resonance is
(Given: \( \pi^2 = 10 \))

Which one of the following plants is the source of cannabinoids commonly used in drug abuse?