When we consider an inert electrode in a cell; which statement is not suitable for it?
(A) It provides surface either for oxidation or for reduction reaction.
(B) It does not participate in the cell reaction.
(C) It provides surface for redox reaction.
(D) It provides surface for conduction of electrons.
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Many halogen containing organic compounds are present in nature and some of them are clinically useful. These classes of organic compounds find a wide range of applications in our daily life as well as in industries. Many of the polyhalogen compounds are useful too in agriculture. However, some of these compounds cannot be easily decomposed and are thus considered to be environmental hazards. These halo compounds are prepared via different synthetic routes where a variety of organic compounds can be used as substrates such as amines, hydrocarbons etc. They are used as solvents for relatively non-polar compounds. These compounds exhibit substitution and elimination reactions, in addition to their reactions with different metals, which leads to the formation of a versatile starting material for others organic compounds.
Alkyl halides react with sodium in dry ether and give hydrocarbon containing double the number of carbon atom present in the halides. The reaction is known as:

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Ethers with the general formula \(C _n H _{2 n+2} O\) and functional group C-O-C may be divided as symmetrical and unsymmetrical.
Lower symmetrical ether may be obtained by the dehydration of alcohols at low temperatures in the presence of protic acids,
such as \(H _2 SO _4\) and \(H _3 PO _4\) whereas at high temperature intramolecular dehydration takes place.
Formation of ether from primary alcohols is also accompanied by the formation of small amount of alkenes.
Due to the steric hinderance, secondary and tertiary alcohols undergo elimination reaction rather than substitution reaction yielding alkene as major product. Ethers can also be obtained by heating alkyl halides with sodium or potassium alkoxides.
Substituted Ethers (secondary & tertiary) can also be prepared using this method.
If primary halides are replaced with secondary and tertiary halides, alkenes are the major products. The compound with the lowest boiling point is

Match List-I with List-II

List-I	List-II
(A) Freons	(I) Paint remover
(B) DDT	(II) Refrigeration
(C) Dichloromethane	(III) Fire extinguisher
(D) Tetrachloromethane	(IV) Insecticide

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Which of the following reactions show that glucose contains five 'OH' groups?

Which of the following compounds will not undergo azo coupling reaction with benzene diazonium chloride?

Which of the following compound is most reactive towards nucleophilic addition reaction?

Out of the following, which one is not correct?

Two sources are producing waves as given in the options below. Which two sources are called coherent ?

If \(a_{i j}\) represents the element of \(i^{\text {th }}\) row and \(j^{\text {th }}\) column and \(A_{i j}\) is the corresponding cofactor, then for the matrix \(A=\left[\begin{array}{ccc}1 & -1 & 0 \\ 2 & 0 & 1 \\ 3 & 4 & 2\end{array}\right]\) the value of \(a_{11} A_{21}+a_{12} A_{22}+a_{13} A_{23}\) is:

When aniline is reacted with benzoyl chloride, the correct product is

Match List - I with List - II.

List – I (Conversion)	List - II (Reagent)
(A) Conversion of phenol to salicylaldehyde	(1) Zinc dust
(B) Conversion of phenol to benzene	(II) \(Na _2 Cr _2 O _7 / H _2 SO _4\)
(C) Conversion of phenol to benzoquinone	(III) NaOH and \(CO _2 / H ^{+}\)
(D) Conversion of phenol to o-hydroxybenzoic acid	(IV) \(CHCl _3+\) aq. NaOH

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The formation of micelle takes place only :
(A) quad above a particular temperature called kraft temperature
(B) quad above a particular concentration called critical micelle concentration
(C) quad when catalyst is added
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