What is the prime constituents of cement?
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Is water element or compound ?
What are filters? Why are they used?
What is the principle involved in conductometric titration?
When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason????????? When a cool glass rod is suudenly heatd, it cracks. Why?????????
What general group of organic compounds are not oxidesied in the cod test?
Which gas is used in bleaching powder.
However ozone is heavier than oxygen still ozone is up there in sky why?
How is librated iodine estimated?
Define what is oxidation and reduction reaction?
From which substance are the dues manufactured ?
Which is the best conductor of electricity?
Why is ammonia-ammonium chloride buffer added?