Which of the following group is NOT Dobereiner Triads?
Which of the following gases is not generated in a biogas plant?
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Who among the following laid the foundation of chemical sciences by establishing two important laws of chemical combination?
Chlorine gas is used in the manufacture of:
If the atomic number of Krypton is 36, then its electronic configuration is:
The main cause of rancidity in foods is the ____ of fats and oils.
Which of the following is essential for the synthesis of thyroxin?
An ∝ particle is _____.
A proton is identical to _____.