1
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
The correct order of bond angles (smallest first) in H2S, NH3, BF3 and SiH4 is
A
H2S < SiH4 < NH3 < BF3
B
H2S < NH3 < BF3 < SiH4
C
H2S < NH3 < SiH4 < BF3
D
NH3 < H2S < SiH4 < BF3
2
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
The bond order in NO is 2.5 while that in NO+ is 3. Which of the following statements is true for these two species?
A
Bond length in NO+ is greater than in NO
B
Bond length is unpredictable
C
Bond length in NO+ in equal to that in NO
D
Bond length in NO is greater than in NO+
3
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
The states of hybridization of boron and oxygen atoms in boric acid (H3BO3) are respectively
A
sp2 and sp2
B
sp3 and sp3
C
sp3 and sp2
D
sp2 and sp3
4
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Which one of the following has the regular tetrahedral structure?
(Atomic nos : B = 5, S = 16, Ni = 28, Xe = 54)
A
XeF4
B
[Ni(CN)4]2-
C
$$BF_4^-$$
D
SF4
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