The increasing order of acidity of the following compounds based on pKa values is

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Although chlorine is an electron withdrawing group, yet it is ortho- and para-directing in electrophilic aromatic substitution reaction because
(A) Chlorine withdraws electrons through inductive effect.
(B)Chlorine destabilises the intermediate carbocation formed during electrophilic substitution.
(C) Chlorine accepts electrons through resonance.
(D) Chlorine releases electrons through resonance.
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In Etard reaction, the final product is

The increasing order of acidity of the following compounds based on pKa values is

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Arrange the following in decreasing order of number of molecules contained in:

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The boiling point of water is ..................

Bronze medal is a mixture of

What is the process by which alum purifies dirty water?

What is the molecular mass of an ozone molecule?

The chemical formula of gypsum is-

One mole of carbon atom weighs 12g, the number of atoms in it is equal to, (Mass of carbon-12 is 1.9926×10⁻²³ g)