Find the secondary valency of Ni in `[Ni(CO)_4]`.

What is the oxidation state of Ni in Ni(CO)_4 ?

Using IUPAC norms write the systematic names of the following: [Ni(CO)_4]

Find the values of:a. cos150^@

Find the value of cos 495^@ .

Primary valency is also known as……………….while secondary valency is known as…………

What is the oxidation state of Fe in K_4[Fe(CN)_6] and Co in Na[Co(CO)_4] ?

Find the mutual inductance between the two coils if a current of 10 ampere in primary coil changes the flux by 500 Wb per turn in the secondary coil of 200 turns. Also, find the induced e.m.f. acorss the ends of the secondary coil if this change occurs in 0.5 sec.

Find the domain and range of the function f(x)=4sin x-3cos x .

Find the principal values of the following. cos^(-1) ("cos"(13pi)/(6))

Find the principal values of the following. cos^(-1)("cos"(7pi)/(6))