When chlorine gas is passed through a hot solution of NaOH, a disproportionation reaction occurs. The zero oxidation state of chlorine changes to:
(A) 0 to +5
(B) 0 to -1
(C) 0 to +3
(D) 0 to +1
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The limiting molar conductivities for \(NaCl\), \(HCl\) and \(CH_3COONa\) are \(126.4\), \(425.9\) and \(91.0\ S\ cm^2\ mol^{-1}\), respectively. Calculate the limiting molar conductivity for acetic acid.

The nitrogen atom in amines is trivalent and possess an unshared pair of electrons. The geometry of trimethyl amine is __________

Which one of the following characteristics of the transition metals is associated with their catalytic property/activity?

The correct increasing reactivity order for SN2 reaction for the following compounds
(A) Benzyl Chloride
(B) Methyl Chloride
(C) Isopropyl Chloride
(D) Tertiary butyl Chloride
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Which one of the following complexes shows optical isomerism?

In Cu - Ag electrochemical cell Cu acts as

The magnetic force can act on a charge, which is

Match List-I with List-II

List-I (Physical quantity)	List-II (Formula)
(A) Current sensitivity of galvanometer	(I) \( \frac{\mu_0 I}{2R} \)
(B) Magnetic field at the centre of a circular coil	(II) \( \frac{NAB}{kR} \)
(C) magnetic field due to a long straight wire carrying a current	(III) \( \frac{NAB}{k} \)
(D) Voltage sensitivity of galvanometer	(IV) \( \frac{\mu_0 I}{2\pi R} \)

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In a single slit diffraction experiment, the aperture of the slit is 3 mm. A monochromatic light of wavelength 620 nm is normally incident on the slit. If the distance between the slit and the screen is 1.2 m, then the separation between the first order minima and the third order maxima on one side of the screen is

Arrange the following compounds in increasing order of their acidic strength ?

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Aryl halides are extremely less reactive towards nucleophilic substitution reaction because of

Read the passage carefully and answer the questions.
Amines are considered to be derivatives of ammonia obtained by replacement of hydrogen atoms with alkyl or aryl groups. They are usually prepared from nitro compounds, halides, amides, imides etc. The presence of hydrogen bonding influences its physical properties. In alkylamines, a combination of electron releasing steric and hydrogen bonding factors influences the stability of substituted ammonium cations in protic polar solvents and thus affects the basic nature of amines. Alkyl amines are found to be stronger bases than ammonia which is more basic than water. Primary and secondary amines are engaged in intermolecular association due to hydrogen bonding. This intermolecular association is more in primary amines than in secondary amines. Tertiary amines do not have intermoleulcar association due to the absenceof hydrogen atom available for hydrogen bonding. Thus, the boiling point of amines depends on hydrogen bonding. In aromatic amines, electron releasing and withdrawing groups increase and decrease their basic character. Aryl diazonium salts usually obtained from arylamine undergo replacement of the diazonium group with a variety of nucleophile. Their coupling reaction of aryl diazonium salts with phenol or arylamine results in formation of dyes.
Which of the following compounds will not undergo azo coupling with benzene diazonium chloride?