chemistry

EAMCET PREVIOUS PAPER QUESTIONS FORM ALKALI AND ALKALINE EARTH METALS PART-1

1.Mognisium metal is obtained by the electrolysis of

a) aqueous MgCl₂

b) fused MgCl₂

c) aquesous MgSO₄

d) fused MgSO₄

2.Gypsum, CaSO₄.2H₂O on heating to about 393K forms plaster of  paris which has the chemical composition represented by

a) CaSO₄.3H₂O

b)CaSO₄.H₂O

c)2CaSO₄.H₂O

d) CaSO₄

3.The highly efficient method of obtaining beryllium is

a) reduction of beryllium halide with magnesium

b) reduction of beryllium oxide with carbon

c) electrolysis of fused beryllium chloride

d) dissociation of beryllium carbide

4.From which mineral, radium was obtained

a) limestone

b) pitchblende

c) rutile

d) haematite

5.Beryllium is diagonally related to

a) Al

b) Li

c) Mg

d) B

6.The hydrolysis of CaC₂ yields

a) C₂ H₆

b) C₂ H₄

c) C₂ H₂

d) C H₄

7.Which of the following metals does not form an ionic hydride

a) Ca

b) Ba

c) Mg

d) Sr

8.which of the following represents marble

a) CaSO₄

b) CaCO₃

c) CaCl₂

d) MgSO₄

9.Scarlet coloured flame is characteristic of

a) Sn

b) Sb

c) Sr

d) K

10.The action of very dil.HNO3 on magnesium gives

a) NH₄NO₃

b)NO₂

c)NO

d)H₂