1
IIT-JEE 1980
Fill in the Blanks
+1
-0
The total no of electron present in 18 ml of water is ______.
2
IIT-JEE 1980
MCQ (Single Correct Answer)
+2
-0.5
M is molecular weight of KMnO4. The equivalent wight of KMnO4 when it is converted into K2MnO4 is
A
M
B
M/3
C
M/5
D
M/7
3
IIT-JEE 1980
Subjective
+2
-0
A hydrocarbon contains 10.5 g of carbon per gram of hydrogen. 1 litre of the hydrocarbon at 127oC and 1 atmosphere weighs 2.8 g. Find the molecular formula.
4
IIT-JEE 1980
Subjective
+2
-0
A mixture contains NaCl and unknown chloride MCl.

(i) 1g of this is dissolved in water. Excess of acidified AgNO3 solution is added to it. 2.567 g of white ppt is formed.

(ii) 1 g of original mixture is heated to 300oC. Some vapours come out which are absorbed in acidified AgNO3 solution, 1.341 g of white precipitate was obtained.

Find the molecular weight of unknown chloride.
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