JEE (Advanced) 2013 Paper-1

The pair(s) of coordination complexes/ions exhibiting the same kind of isomerism is(are)

Among P, Q, R and S, the aromatic compound(s) is/are

The hyperconjugative stabilities of tert-butyl cation and 2-butene, respectively, are due to

Benzene and naphthalene form an ideal solution at room temperature. For this process, the true statement(s) is(are)

The initial rate of hydrolysis of methyl acetate (1M) by a weak acid (HA, 1M) is $$1/100^{th}$$ of that of a strong acid (HX, 1M), at $$25^\circ C$$. The $$K_a$$ of HA is

The total number of carboxylic acid groups in the product P is

A tetrapeptide has -COOH group on alanine. This produces glycine (Gly), valine (Val), phenyl alanine (Phe) and alanine (Ala), on complete hydrolysis. For this tetrapeptide, the number of possible sequences(primary structures) with $$-NH_2$$ group attached to a chiral center is

$$EDTA^{4-}$$ s ethylenediaminetetraacetate ion. The total number of $$N - Co - O$$ bond angles in $$[Co(EDTA)]^{1-}$$ complex ion is

The total numberof lone-pairs of electrons in melamine is

The atomic masses of He and Ne are 4 and 20 a.m.u., respectively. The value of the de Broglie wavelength of He gas at $$-73^\circ C$$ is "M" imes that of the de Broglie wavelength of Ne at $$727^\circ C.$$ M is