||MCQS for JEE and AIPMT || HOME
TOPIC:: d - BLOCK ELEMENTS COORDINATION COMPOUNDS AND ORGANOMETALLICS GASES : : PAGE#7
CLICK ON THE CORRECT OPTION,
TO GET SOLUTION, CLICK ON SOLUTION

Q25) The substance that sublimes on heating is [ EAMCET 1978]




SOLUTION

HgCl2 sublimates on heating and has a corrosive action on glass.ence it is known as corrosive sublimate
Answer: (c)


Q26) Calomel is .. [ BHU 1981]




SOLUTION


Answer: (b)


Q27) Indicate the mineral from which copper is manufactured.. [ NCERT 1973]



SOLUTION

Chalcopyrate is copper pyrites CuFeS2 from which copper can be extracted
Answer:(d)



Q28) Copper sulphate is commercially made from copper scraps by .. [ CPMT 1973]



SOLUTION

Cu (scrap) + H2SO4 (dil.) + ½ O2(air) → CuSO4 + H2O
Answer: (b)


logo
All contents ©Copyright 2013 www.gneet.com
Site Design © 2013 All Rights Reserved Gore Coaching Classes