Aqueous NaCl solution is electrolysed. The product formed at anode is :

Arrange the following compounds in increasing order of their acidic strength:
(A) 3-nitrophenol
(B) 3,5-Dinitrophenol
(C) 2,4,6 -Trinitrophenol
(D) Phenol
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From the given standard reduction potentials, arrange the metals in decreasing order of their reducing power.
(A) \(E_{ Zn ^{2+} / Zn _{ n }}^0=-0.76 V\)
(B) \(E_{ Mg ^{2+} / Mg }^0=-2.37 V\)
(C) \(E_{ Al ^{3+} / Al }^0=-1.67 V\)
(D) \(E_{ Ag ^{+} / Ag }^0=+0.80 V\)
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The mass of NaOH required to make a 500 mL solution of 0.5 molarity is

Arrange the following compounds in increasing order of their reactivity towards nucleophilic addition reaction:
(A) Ethanal
(B) Propanal
(C) Propanone
(D) Butanone
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From binary solution of two liquids, A and B
Match List-I with List-II

List-I: Inter-molecular interaction	List-II: Behavior
(A) A-A & B-B are nearly equal to A-B	(I) Negative deviation from Raoult's Law
(B) A-A & B-B are stronger compared to A-B	(II) Azeotropes
(C) A-A & B-B are weaker compared to A-B	(III) Positive deviation from Raoult's Law
(D) Very strong A-B interaction	(IV) No deviation from Raoult's Law

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What is the correct sequence of increasing reactivity of the following compounds towards nucleophilic addition reaction?
(A) Ethanal
(B) Propanone
(C) Propanal
(D) Butanone
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Match List-I with List-I

List-I	List-II
A. Electric field outside a uniformly charged thin spherical shell	(I) zero
B. Electric field inside a uniformly charged thin spherical shell	(II) \(\frac{\lambda}{2 \pi \epsilon_0 r} \vec{n}\)
C. Electric field due to an infinitely long straight uniformly charged wire	(III) \(\frac{\sigma}{2 \epsilon_0} \vec{n}\)
D. Electric field due to a uniformly charged infinite plane sheet	(IV) \(\frac{k q}{r^2} \vec{r}\)

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Read the passage carefully and answer the Questions
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.
Which of the following is a double salt?

Match List-I with List-II

List-I (EM wave)	List-II (Production)
(A) Light	(I) Klystron valve or magnetron valve
(B) X-rays	(II) Rapid acceleration/deceleration of electrons in aerials
(C) Microwave	(III) Electrons in atoms move from higher to lower energy level
(D) Radiowave	(IV) Inner shell electrons/ fast-moving electrons decelerated by metal target

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\(\int\left(\frac{1+x+x^2}{1+x^2}\right) e^{\tan ^{-1} x} d x=\)

Which of the following is an example of microbial biocontrol agents?

Which of the following is a barrier method of contraception?