Chemistry Mcqs

Boron is non-netal whereas A1 is metal. It is due to_______________________?

(A) Small size

(B) High nuclear charge

(C) Both A and B

(D) No authorized justification yet

Submitted By: Ali Uppal


Ozonolysis of benzene produces___________________?

(A) Glycol

(B) Glyoxal

(C) Vicinal diol

(D) Both B & C

Submitted By: Ali Uppal


Submitted By: Ali Uppal


Submitted By: Ali Uppal


Substance which is found in dried up lakes of Tibet and California is_______________?

(A) Tincal

(B) Boric acid

(C) Calcium carbonate

(D) Colemanite

Submitted By: Ali Uppal


Boron in soil has been considered micronutrient for_________________?

(A) Soil porocity

(B) Proper growth of plants

(C) Alkalinity of soil

(D) All

Submitted By: Ali Uppal


Which of the following is metasilicic acid ?

(A) H2SnO3

(B) H2SiO3

(C) H3AsO4

(D) H3SbO4

Submitted By: Ali Uppal


Which of the following will decompose to produce litharge_________________?

(A) Pb2O

(B) Pb3O4

(C) PbO2

(D) All of the above

Submitted By: Ali Uppal


If temperature of gallium arsenide is increased then its conductivity will___________________?

(A) decrease

(B) increase

(C) remains constant

(D) first decreases then increases

Submitted By: Ali Uppal


The coloured glassy mass in borax bead test is due to the formation of___________________?

(A) metal borate

(B) metal meta borate

(C) metal boride

(D) metal silicate

Submitted By: Ali Uppal