JEE Advanced 2014 · Paper 2

Hydrogen peroxide in its reaction with KIO₄ and NH₂OH respectively, is acting as a

1. Areducing agent, oxidising agent
2. Breducing agent, reducing agent
3. Coxidising agent, oxidising agent
4. Doxidising agent, reducing agent

The product formed in the reaction of SOCl₂ with white phosphorous is

1. APCl₃
2. BSO₂Cl₂
3. CSCl₂
4. DPOCl₃

For the identification of β-naphthol using dye test, it is necessary to use

1. Adichloromethane solution of β-naphthol.
2. Bacidic solution of β-naphthol.
3. Cneutral solution of β-naphthol.
4. Dalkaline solution of β-naphthol.

For the elementary reaction M → N, the rate of disappearance of M increases by a factor of 8 upon doubling the concentration of M. The order of the reaction with respect to M is

1. A4
2. B3
3. C2
4. D1

For the process H₂O (l) → H₂O (g) at T = 100°C and 1 atmosphere pressure, the correct choice is

1. A∆Ssystem > 0 and ∆Ssurroundings > 0
2. B∆Ssystem > 0 and ∆Ssurroundings < 0
3. C∆Ssystem < 0 and ∆Ssurroundings > 0
4. D∆Ssystem < 0 and ∆Ssurroundings < 0

Assuming 2s-2p mixing is NOT operative, the paramagnetic species among the following is

1. ABe₂
2. BB₂
3. CC₂
4. DN₂