Chemistry Mcqs

E0red of an element cab be calculated by comparing it with _____________________?

(A) New electrode of same element

(B) SHE

(C) 1M solution of ions of respective element

(D) 2M solution of HCI

Submitted By: Ali Uppal


Salt bridge transfers_______________?

(A) electrons

(B) anion

(C) current

(D) ions

Submitted By: Ali Uppal


Submitted By: Ali Uppal


Decrease in oxidation number is called__________________?

(A) oxidation

(B) reduction

(C) oxidation-reduction

(D) all of above represent same entity

Submitted By: Ali Uppal


Reaction at anode is called________________?

(A) oxidation

(B) reduction

(C) redox

(D) decomposition

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The melting points and boiling points upto meddle of 3d- series ____________________?

(A) increases

(B) decreases

(C) remain same

(D) no regular trend

Submitted By: Ali Uppal


The leements in which d or f orbitals are in the process of completion are__________________?

(A) outer transition elements

(B) inner transition elements

(C) typical transition elements

(D) transition elements

Submitted By: Ali Uppal


Group VIB of transition elements contains___________________?

(A) Zn Cd Hg

(B) Fe Ru Os

(C) Cr Mo W

(D) Mn Te Re

Submitted By: Ali Uppal


Submitted By: Ali Uppal


The reduction potential Zn is_________________?

(A) 0.76

(B) -0.76

(C) -0.55

(D) 0.55

Submitted By: Ali Uppal