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• AIPMT 2010 Chemistry

AIPMT 2010 Chemistry

  

Q. 28.  In a set of reactions, ethyl benzene yielded a product D.

Sol.

Answer : (4)

Q. 29.  25.3 g of sodium carbonate,  is dissolved in enough water to make 250 mL  of solution. If sodium carbonate dissociates completely, molar concentration of sodium ion,   and carbonate ions,   are respectively (Molar mass of

1. 0.955 M and 1.910 M
2. 1.910 M and 0.955 M
3. 1.90 M and 1.910 M
4. 0.477 M and 0.477 M

Sol .

Concentration Of   

Answer : (2)

Q. 30. Property of the alkaline earth metals that increases with their atomic number:

1. Solubility of their hydroxides in water
2. Solubility of their sulphates in water
3. Ionization energy
4. Electronegativity

Sol:

Lattice energy decreases more rapidly than hydration energy for alkaline earth metal hydroxides

Answer : (1)