Chemistry

A container contains O?, He and SO? gases such that mass of SO? is double the mass of O? and mass of He is half the mass of O? gas. The sum of mole fraction of all the gases is:

The increasing order of the reactivity of the following compounds in nucleophilic addition reaction is:
(a) Di-tert-butyl ketone
(b) Acetone
(c) Acetaldehyde
(d) p-Nitrobenzaldehyde

Consider the following molecules and statements related to them:
Molecule (P) is p-nitrophenol.
Molecule (Q) is o-nitrophenol.

(a) (Q) is more volatile than (P)
(b) (Q) has higher boiling point than (P)
(c) (P) dissolves more readily than (Q) in water
(d) pKa value of (P) is higher than (Q)

Identify the correct option from below:

Among the following statements, identify the correct set of statements:
(A) Size of Li is smaller than Mg
(B) Both Li and Mg form covalent compounds readily
(C) Both Li and Mg react with nitrogen and form nitride
(D) Oxides of Li and Mg do not combine with excess oxygen to give superoxides

Identify the correct option from below:

The number of compounds which do not show Fehling solution test?
Compound:

The Number of Species which have square pyramidal shape Species:-
XeOF₄, ClF_5, XeF_4, PCl_5, XeO₃F₂, SbCl_5, BrF₅.

The EAN value of [Ti(σ – C₅H₅)₂(π – C₅H₅)₂] is

For how many metals leaching method is used for its concentration of ore
Metals: Cu, Zn, Pb, Al, Au, Ag

The number of Cl = O bond in Chlorous acid is

200ml of 0.5M solution of CuBr₂ was electrolysed using Pt as electrodes with a current of 0.965 ampere in one hour, what is the normality of the remaining CuBr₂ solution assuming no change in volume?