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.
1,3-Diphenylprop-2-en-1-one is produced by the following.

Fructose is a ketohexose. The keto group is positioned at which carbon:

Formic acid does not respond to

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Werner in 1898, propounded his theory of coordination compounds. In coordination compounds metals show two types of linkages (valences)-primary and secondary. The primary valences are normally ionisable and are satisfied by negative ions. The secondary valences are non-ionisable. These are satisfied by neutral molecules or negative ions. The secondary valence is equal to the coordination number and is fixed for a metal. The ions or group bound by the secondary linkages to the metal have characteristic spatial arrangements corresponding to the different coordination numbers. Both double salts as well as complexes are formed by the combination of two or more stable compounds in stoichiometric ratio. However, they differ in the fact that double salts such as carnallite, Mohr's salt, potash alum etc. dissociate into simple ions completely when dissolved in water. But complex ions do not dissociate completely into simple ions.
When \(1 mol CrCl _3 \cdot 6 H _2 O\) is treated with excess of \(AgNO _3, 3 mol\) of AgCl are obtained. The formula of the complex is:

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As aldehydes ketones possess the carbonyl functional group, they show similar reactions. They exhibit nucleophilic addition reactions, reduction, oxidations, reactions due to alpha-Hydrogen atom, and many other reactions, like Cannizzaro reaction to electrophilic substitution reactions (in case of aromatic aldehydes ketones).
These reactions help in the preparation of a number of important compounds, like acetic acid, vinyl acetate, polymers and in perfume and dye industries. Nucleophilic addition reactions form cyanohydrins, acetals, alcohols and N -substituted derivatives like imine, oxime, semicarbazone, phenylhydrazone Schiff's base. Reactions due to alpha-hydrogen atoms help in formation of aldols and alpha, beta-unsaturated aldehydes ketones.
Which of the following does not give iodoform test?


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Match List-I and List-II

List-I	List-II
A. Tranquilizers	I. Ofloxacin
B. Antibiotics	II. Chlorodiazepoxide
C. Antacids	III. Seldane
D. Antihistamines	IV. Cimetidine

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Which of the following is known as Hinsberg's reagent?

In a primary dry cell, choose the incorrect statement.

When the electronic configuration of a transition metal element \(X\) in +3 oxidation state is \([ Ar ] 3 d^5\), what is its atomic number?

The derivative of \(\sqrt{e^{\sqrt{x}}}\) with respect to \(x\) is :

Area lying between the curves \(y^2=9 x\) and \(y=3 x\) is:

The age distribution plotted for the population is known as the 'Age pyramid'. Select the three types of age pyramids based on the shape and age groups:
(A) Expanding
(B) Inverted
(C) Stable
(D) Declining
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Match List-l with List-ll

List-I (Name of the molecule/drug)	List-II (Use/disease name)
(A) Thyroxine	(I) Scurvy
(B) Ascorbic acid	(II) Thyroid gland
(C) Steroid hormones	(III) Identification of criminals
(D) DNA fingerprinting	(IV) Adrenal cortex

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