Practice paper · Mid-term

On increasing the temperature, solubility of carbon dioxide in water-

1. Aincreases
2. Bdecreases
3. Cno change
4. Dunpredictable

The standard electrode potential for the cell: Mg | Mg2+ (0.2 M) || Ag+ (0.01 M) | Ag is 3.17 V. The standard Gibbs energy change for the reaction occurring in cell will be-

1. A3.17 F
2. B6.34 F
3. C-6.34 F
4. DInsufficient data to calculate

The rate constant, k of a reaction is 2.5 min-1 , the order of reaction is –

1. Azero
2. Bfirst
3. Csecond
4. Dcannot be determined

Out of the following transition elements, the highest oxidation state is shown by:

1. ASc (Z = 21)
2. BCr (Z = 24)
3. CMn (Z = 25)
4. DCu (Z = 29)

For the elementary reaction M→ N, the rate of disappearance of ‘M’ increases eight times upon doubling the concentration of ‘M’. The order of reaction with respect to ‘M’ is:

1. A1
2. B2
3. C3
4. D4

For a complex [CoX6]3–, the crystal field splitting energy(o) would be maximum when X is -

1. ACN–
2. BNO2–
3. CCl–
4. DOH–

Lanthanoid which is well known to exhibit +2 oxidation state is:

1. AEu
2. BCe
3. CAm
4. DGd

The major product formed by the reaction of (CH3)3C–Br and CH3ONa is–

1. A2-Ethoxy-2-methylpropane
2. B2-Methylpropene
3. C2,2-Dimethylpropane
4. D2-Methylpropane-2-ol