1
IIT-JEE 1990
Subjective
+3
-0
The vapour pressure of pure benzene at a certain temperature is 640 mm Hg. A non-volatile non-electrolyte solid weighing 2.175 g is added to 39.0 g of benzene. The vapour pressure of the solution is 600 mm Hg. What is the molecular weight of the solid substance?
2
IIT-JEE 1990
Subjective
+1
-0
Give the IUPAC name of the following compound :
3
IIT-JEE 1990
MCQ (Single Correct Answer)
+2
-0.5
The equation $$\left( {\cos p - 1} \right){x^2} + \left( {\cos p} \right)x + \sin p = 0\,$$
In the variable x, has real roots. Then p can take any value in the interval
4
IIT-JEE 1990
Subjective
+4
-0
Let $${z_1}$$ = 10 + 6i and $${z_2}$$ = 4 + 6i. If Z is any complex number such that the argument of $${{(z - {z_1})} \over {(z - {z_2})}}\,is{\pi \over 4}$$ , then prove that $$\left| {z - 7 - 9i} \right| = 3\sqrt 2 $$.
Paper analysis
Total Questions
Chemistry
12
Mathematics
26
Physics
1
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