Which of the following elements has the lowest melting point?
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Atomic number of which of the following elements is greater than that of Iodine
....... is the property of attracting electrons by the halogen atoms in a molecule
The biogas used for cooking is a mixture of which of the following ?
In hydrolysis reactions compounds react with
A solution contains 33 g of common salt in 320 g of water. Calculate the concentration in terms of mass, by mass percentage of the solution.
_______________ is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration.
Which of the following is used as non stick coating for cooking utensils?
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