||MCQS for JEE and AIPMT || HOME
TOPIC::- Page:#11
CLICK ON THE CORRECT OPTION,
TO GET SOLUTION, CLICK ON SOLUTION

Q41) The most stable hydride is .. [EAMCET 1988]



SOLUTION

Electro negativity decreases down the group and atomic radius increases as a result difference in electronegativity decreases and stability decreases. Nitrogen is most electronegative in group .Thus NH3 is most stable in given options
Answer: (a)


Q42) Phosphorus pentaoxide is widely used as
( GUJCET 2010)



SOLUTION

Answer : (c) and b


Q43) Given are H3PO3, H3PO3, H3PO4, and H4P2O7. Which of the above oxoacids results into series of salts



SOLUTION

Forms two series of salts phosphite (Normal) and hydrogen phosphite (Acidic).
Answer: (c)



Q44) Producer gas is a mixture of [AIIMS 1998, 2000]



SOLUTION

Producer gas is a mixture of CO and Nitrogen
Answer : (c)


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