Which of the following elements has the lowest melting point?
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Chemical formula for sulphurous acid is:
The reactions in which oxidation and reduction occur simultaneously are called _______.
Which one of the following is a good electrical conductor?
Elements A, B and C occur as Dobereiners triads. If the atomic mass of A is 7 and that of C is 39, what will be the atomic mass of B?
Constantan is alloyed from ...... metals.
What chemical is injected into a person's body when an ant bites?
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