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 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
3
AIEEE 2007
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Identify the incorrect statement among the following :
A
Ozone reacts with SO2 to give SO3
B
Silicon reacts with NaOH(aq) in the presence of air to give Na2SiO3 and H2O
C
Cl2 reacts with excess of NH3 to give N2 and HCl
D
Br2 reacts with hot and strong NaOH solution to give NaBr, NaBrO4 and H2O
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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