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1
AIEEE 2008
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Among the following substituted silanes the one which will give rise to cross linked silicone polymer on hydrolysis is :
A
R4Si
B
RSiCl3
C
R2SiCl2
D
R3SiCl
2
AIEEE 2008
MCQ (Single Correct Answer)
+4
-1
Which one of the following is the correct statement?
A
Boric acid is a protonic acid
B
Beryllium exhibits coordination number of six
C
Chlorides of both beryllium and aluminium have bridged chloride structures in solid phase
D
B2H6.2NH3 is known as ‘inorganic benzene’
3
AIEEE 2007
MCQ (Single Correct Answer)
+4
-1
Regular use of which of the following fertilizer increases the acidity of soil?
A
Potassium nitrate
B
Urea
C
Superphosphate of lime
D
Ammonium sulphate
4
AIEEE 2007
MCQ (Single Correct Answer)
+4
-1
The stability of dihalides of $$Si,Ge,Sn$$ and $$Pb$$ increases steadily in the sequence :
A
$$Pb{X_2} < < Sn{X_2} < < Ge{X_2} < < Si{X_2}$$
B
$$Ge{X_2} < < Si{X_2} < < Sn{X_2} < < Pb{X_2}$$
C
$$Si{X_2} < < Ge{X_2} < < Pb{X_2} < < Sn{X_2}$$
D
$$Si{X_2} < < Ge{X_2} < < Sn{X_2} < < Pb{X_2}$$
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