Which gas is used, in laboratories etc. for burners ?
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On the cold morning, a gardener touches the iron blade of his spade with one hand and its wooden handle with other hand. Why does he feel the iron blade to be colder than the wooden handle ?
State beer’s law.
What is si unit of viscosity-coefficient?
What is the difference between hard and soft water ?
Which is the best conductor of electricity?
Why is acetic acid added?
Explain the following ? Isotope, Isobars, Stable configuration, Electronic Theory of Valency, Valency
Which is the hottest part of a flame ?
How can fresh water be made from salt water ?
What is the function of diethyl amine?
What is the unit of ph?
who is the king of chemistry?