1
IIT-JEE 2011 Paper 1 Offline
Numerical
+2
-0
The maximum number of electrons that can have principal quantum number, n = 3, and spin quantum number, ms = − 1/2 , is
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2
IIT-JEE 2011 Paper 1 Offline
Numerical
+4
-0
The work function ( φ ) of some metals is listed below. The number of metals which will show photoelectric effect when light of 300 nm wavelength falls on the metal is
Metal Li Na K Mg Cu Ag Fe Pt W
Ф (eV) 2.4 2.3 2.2 3.7 4.8 4.3 4.7 6.3 4.75
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3
IIT-JEE 2011 Paper 1 Offline
Numerical
+2
-0
The difference in the oxidation numbers of the two types of sulphur atoms in Na2S4O6 is
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4
IIT-JEE 2011 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

Bombardment of aluminium by $$\alpha$$-particle leads to its artificial disintegration in two ways : (i) and (ii) as shown. Products X, Y and Z, respectively, are

IIT-JEE 2011 Paper 1 Offline Chemistry - Chemical Kinetics and Nuclear Chemistry Question 9 English

A
proton, neutron, positron.
B
neutron, positron, proton.
C
proton, positron, neutron.
D
positron, proton, neutron, neutron.
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