1
IIT-JEE 2005 Screening
MCQ (Single Correct Answer)
+1
-0.25
The number of radial nodes of 3s and 2p orbitals are respectively
A
2, 0
B
0, 2
C
1, 2
D
2, 1
2
IIT-JEE 2004 Screening
MCQ (Single Correct Answer)
+1
-0.25
The radius of which of the following orbit is same as that of the first Bohr's orbit of hydrogen atom?
A
He+ (n = 2)
B
Li2+ (n = 2)
C
Li2+ (n = 3)
D
Be3+ (n = 2)
3
IIT-JEE 2003 Screening
MCQ (Single Correct Answer)
+2
-0.5
Which of the following pairs are isoelectronic and isostructural?
$$NO_3^-$$, $$CO_3^{2-}$$, $$ClO_3^-$$, SO3
A
$$NO_3^-$$, $$CO_3^{2-}$$
B
SO3, $$NO_3^-$$
C
$$ClO_3^-$$, $$CO_3^{2-}$$
D
$$CO_3^{2-}$$, SO3
4
IIT-JEE 2002 Screening
MCQ (Single Correct Answer)
+1
-0.25
Rutherford's experiment, which established the nuclear model of the atom, used a beam of
A
$$\beta-particles$$, which impinged on a metal foil and got absorbed
B
$$\gamma-particles$$, which impinged on a metal foil and ejected electrons
C
helium atoms, which impinged on a metal foil and got scattered
D
helium nuclei, which impinged on a metal foil and got scattered
JEE Advanced Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12