Which of the following statements is not true of halogens...
Which of the following statements is not true of halogens?
they exist in different physical states
they exist as diatomic molecules
their ionic radii decrease down the group
their melting and bolling points increase down the group
Correct answer is C
No explanation has been provided for this answer.
What is the percentage by weight of calcium in Ca(OCI)2? [Ca = 40, Cl = 35.5, O = 16]...
Which of the following substances is suitable solvent for perfumes? ...
The formation of ethene from dehydration of ethanol can be described as------- ...
Na2CO3(g) + 2HCl(aq) → 2NaCl(aq) + H2O(l) + CO2(g) How many moles of sodium trioxocarbonate (I...
Chlorination of water for town supply is carried out to ...
Which of the following statements about an equilibrium system is correct? ...
The ammonium compound used in the manufacture of dry cells is ...