Chemistry Mcqs

Bleaching powder is not used for bleaching________________?

(A) Cotton

(B) Costly fabrics

(C) Linen

(D) Paper pulb

Submitted By: Ali Uppal


The chemical formula of sodium hypochlorite is________________?

(A) NaCLO

(B) NaClO2

(C) NaClO3

(D) NaClO4

Submitted By: Ali Uppal


The anhydride of HCIO4 is_________________?

(A) Cl2O

(B) Cl2O6

(C) ClO2

(D) Cl2O7

Submitted By: Ali Uppal


In which compound of Xenon the oxidation state of Xenon is + 6?

(A) XeF4

(B) XeOF4

(C) XeOF2

(D) Na4XeO6

Submitted By: Ali Uppal


Submitted By: Ali Uppal


Fluorine can react with_________________?

(A) Xe

(B) Kr

(C) Rn

(D) All of the above

Submitted By: Ali Uppal


Which of the following statements is incorrect about halogens ?

(A) All are non-metals

(B) All the halogens have electronic conviguration ns2p5

(C) They have high electron attinity and ionization energy

(D) All the halogens react with noble gases to form their halides

Submitted By: Ali Uppal


Which of the halogen has highest electronegativity ?

(A) Fluorine

(B) Chlorine

(C) Bromine

(D) Iodine

Submitted By: Ali Uppal


Which of the following oxides of iodine is used for quantitative analysis of CO ?

(A) I2O4

(B) I4O2

(C) I2O5

(D) All are equally useful

Submitted By: Ali Uppal


Bleaching powder is an example of________________?

(A) Normal salt

(B) Double salt

(C) Mixed salt

(D) Complex

Submitted By: Ali Uppal