1
IIT-JEE 1992
Subjective
+5
-0
A 2.0 g sample of a mixture containing sodium carbonate, sodium bicarbonate and sodium suplphate is gently heated till the evolution of CO2 ceases. The volume of CO2 at 750 mm Hg pressure and at 298K is measured to be 123.9 ml. A 1.5g of the same sample requires 150 ml. of (M/10) HCl for complete neutralisation. Calculate the % composition of the components of the mixture.
2
IIT-JEE 1992
MCQ (Single Correct Answer)
+1
-0.25
Which of the following does not characterise X-rays?
3
IIT-JEE 1992
MCQ (Single Correct Answer)
+1
-0.25
Which of the following relates to photons both as wave motion and as a stream of particles?
4
IIT-JEE 1992
MCQ (Single Correct Answer)
+1
-0.25
The statement that is not correct for the periodic classification of element is
Paper Analysis
Total Questions
Chemistry 17
Mathematics 23
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