chemistry

EAMCET PREVIOUS PAPER QUESTIONS FORM ALKALI METALS PART-1

1. The first ionization energy of lithium is

a) greater than Be

b) less than Be

c) equal to Na

d) equal to F

2.Which pair of elements will have the same chemical properties?

a)13.12

b) 3,11

c) 4,24

d) 2,4 

3.Sodium sulphate is soluble in water where as barium sulphate is sparingly soluble because

a) The hydration energy of sodium sulphate is more than its lattice energy

b) lattice energy of barium sulphate is more than the hydration energy

c) the lattice energy has no role to play in solubility

d) The hydration energy of sodium sulphate is less than its lattice energy

4) in case of alkali metals

a) the cation is less stable than the atom

b) the cation is smaller than the atom

c) the cation and the atom have about the same size

d) the cation is larger than the atom

5. On heating sodium metal in a current of dry ammonia gas, the compound formed is

a) sodium nitride

b) sodium hydride

c) sodium amide

d) sodium azide

6.Excess of NaOH with zinc forms

a) Zn(OH)₂

b) ZnO

c) ZnH₂

d) Na₂ZnO₂

7. Which of the following statements is correct?

a) lithium carbonate is soluble in water

b) carborates of Ca,Sr,Ba are soluble in water

c) carborates of Na,K and Co are soluble in water

d) basic carbonate of Mg is soluble in water

8.which is manufactured by the electrolysis of fused NaCl

a) NaOH

b) NaClO

c) NaClO₃

d) Na

9.potassium is kept in

a) water

b) ammonia

c) alcohol

d) kerosene

10. Fire extinguishers contain H₂SO₄ and

a) Na₂ CO₃+ NaHCO₃

b) NaHCO₃ solution

c) Na₂CO₃

d) CaCO₃