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1
IIT-JEE 1988
MCQ (Single Correct Answer)
+1
-0.25
In which mode of expression, the concentration of a solution remains independent of temperature?
A
Molarity
B
Normality
C
Formality
D
Molality
2
IIT-JEE 1988
Fill in the Blanks
+1
-0
The uncertainty principle and the concept of wave nature of matter were proposed by ______ and ______ respectively. (Heisenberg Schrodinger, Maxwell, de Broglie)
3
IIT-JEE 1988
Subjective
+2
-0
A sugar syrup of weight 214.2 g contains 34.2 g of sugar (C12H22O11). Calculate (i) molal concentration and (ii) mole fraction of sugar in the syrup
4
IIT-JEE 1988
MCQ (Single Correct Answer)
+1
-0.25
The wavelength of a spectral line for an electronic transition is inversely related to :
A
The number of electrons undergoing the trasition
B
The nuclear charge of the atom
C
the difference in the energy of the energy levels involved in the transition
D
the velocity of the electron undergoing the transition

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