If a and b be the roots of the equation x2 - 2x + 2 = 0, then the least value of n for
Ammonia forms a complex ion $$[Cu(NH_{3})_{4}]^{2+}$$ with copper ions in alkaline solutions but
A solid cylinder of radius R made of a material of thermal conductivity K1 is surround
For which of the following crystalline substances does the solubility in water increase upto