Which of the following compounds are aromatic alcohols?
(A)

(B)

(C)

(D)

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In Octahedral coordination entities :

Arrange the following in order of increasing boiling points
(A) 1,4-Dichlorobenzene
(B) 1,3-Dichlorobenzene
(C) 1,2-Dichlorobenzene
(D) Chlorobenzene
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Arrange the metal ions of the following compounds in increasing order of oxidation number :
(A) \(\text{TiCl}_3\)
(B) \(\text{CrF}_6\)
(C) \(\text{ZnO}\)
(D) \(\text{Mn}_2\text{O}_7\)
Choose the correct answer from the options given below :

Match List-l with List-ll:

List-l (Representation)	List-II (Common name)
(A) \(10^{-6} M\) solution	(I) Decimolar solution
(B) 0.1 M solution	(II) Micromolar solution
(C) 0.001 M solution	(III) Millimolar solution
(D) 0.01 M solution	(IV) Centimolar solution

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Ultra pure silicon can be obtained by

Match the ions given in List - I with number of unpaired electrons given in List - II

List - I (Ion)	List-II (Number of unpaired electrons)
(A) \(V ^{ 2 + }\)	(I) 1
(B) \(Cr ^{2+}\)	(II) 4
(C) \(Ti ^{2+}\)	(III) 3
(D) \(Cu ^{2+}\)	(IV) 2

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A long solenoid is formed by winding 40 turns/cm. The current required to produce a magnetic field of 22 mT inside the solenoid will be (Take \( \mu_0 = 4\pi \times 10^{-7} \, Tm A^{-1} \))

When dilute hydrochloric acid is added to sodium chromate solution the colour changes to :

The function of germ pore in a pollen grain is:

Read the passage carefully and answer the questions
Carboxylic acids are the organic compounds which comprise of carboxyl functional group, -COOH. These are generally found in nature, some higher members are known as fatty acids as they occur in natural fats as esters of glycerol. They can be prepared from oxidation of alcohols and aldehydes, hydrolysis of nitriles and amides and Grignard reagents. They are stronger acids than simple phenols and alcohols. but weaker than mineral acids. Substituents affect the acidity of aliphatic and aromatic carboxylic acids. They undergo reactions involving cleavage of -OH and C-OH bond. Carboxylic acids having an alpha hydrogen get halogenated in the presence of red phosphorus to form alpha halo carboxylic acids. The reaction is known as Hell Volhard Zelinsky reaction. Besides these aromatic carboxylic acids undergo electrophilic substitution reactions. They are versatile and are employed in the manufacture of various useful compounds. For example, methanoic acid is used in rubber, textile, dyeing, leather and electroplating industries. Higher fatty acids are used in the manufacture of soaps and detergents. Esters of Benzoic acid are used in perfumery.
Which carboxylic acid will not undergo HVZ reaction?

A lot of \(50\) watches is known to have \(10\) defective watches. If \(8\) watches are selected one by one with replacement at random, then the probability that there will be at least one defective watch is:

A current of 2 A flows through a 2 \( \Omega \) resistor when connected with a cell. When the resistance is replaced by 10 \( \Omega \), a current of 0.5 A flows. The internal resistance of the cell is