Identity A-B.

Identity C-D.

An element A occupies group number 15 and period number 3, exhibits allotropy and it is tetra atomic. A reacts with caustic soda a to give B which is having rotten fish odour. A reacts with chlorine to give C which has a smell of garlic. Identity A, B and C. Write the reactions.

A metal 'X' on treatment with NaOH forms a white precipitate (A) which is soluble in excess of NaOH to yield complex (B). (A) is soluble in HCI to produce (C). On strong heating (A) gives (D) from which the metal is extracted. Identity X, A, B, C, D and write the equation involved.

Identity the longest and shortest phase of mitosis-

Let f(x) = (ax+b) cos x+ (cx+ d) sin x and f' (x) = x cos x be an identity in x then

Show that identity of the binary operation ** on RR defined by a**b=|a+b| for all a,binRR, does not exist.

Identify the identities and the equations among the following statements : ab=((a+b)/2)^(2)-((a-b)/2)^(2)

Let ** be the binary opertion on N defined by a **b=H.C.F. of a and b. Is ** commutative ? Is ** associative ? Does there exist identity for this binary opertion on N ?

Identify the identities and the equations among the following statements : x^(2)-(a-b)x+ab=0