BISE Gujranwala · Class 12 · Chemistry

BISE Gujranwala · Class 12 · Chemistry · 2025 · Group 2 · Objective

2025

Source total marks: 17 Time allowed: 20 Min.

Transcribed from the identified examination paper. Check the board, session and course before use. SchoolOrbit is not affiliated with the issuing board.

OBJECTIVE

Q1(1)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
The electrophile in aromatic sulphonation is
- (A)
  $H_{2} S O_{4}$
- (B)
  $H S O_{4}^{-}$
- (C)
  $S O_{3}$
- (D)
  $S O_{3}^{+}$
Q1(2)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
Group VIB of transition element contains
- (A)
  Zn, Cd, Hg
- (B)
  Fe, Ru, Os
- (C)
  Cr, Mo, W
- (D)
  Mn, Te, Re
Q1(3)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
The presence of a double bond in a compound is the sign of
- (A)
  Saturation
- (B)
  Unsaturation
- (C)
  Substitution
- (D)
  None of these
Q1(4)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
Phosphorus helps the growth of
- (A)
  Root
- (B)
  Leave
- (C)
  Stem
- (D)
  Seed
Q1(5)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
The fibre which is made from acrylonitrile as monomer?
- (A)
  PVC
- (B)
  Rayon fibre
- (C)
  Polyester fibre
- (D)
  Acrylic fibre
Q1(6)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
Ethanol can be converted into ethanoic acid by
- (A)
  Hydrogenation
- (B)
  Hydration
- (C)
  Fermentation
- (D)
  Oxidation
Q1(7)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
Down’s Cell is used to prepare
- (A)
  $N a_{2} C O_{3}$
- (B)
  $N a H C O_{3}$
- (C)
  Na metal
- (D)
  $N a O H$
Q1(8)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
Hydrogen bond is the strongest between the molecule
- (A)
  $H F$
- (B)
  $H C l$
- (C)
  $H B r$
- (D)
  $H I$
Q1(9)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
Which metal is used in the Thermite Process because of its activity
- (A)
  Iron
- (B)
  Copper
- (C)
  Aluminium
- (D)
  Zinc
Q1(10)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
Newspaper can be recycled again and again by how many times?
- (A)
  5
- (B)
  3
- (C)
  4
- (D)
  2
Q1(11)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
Which reagent is used to reduce a Carboxylic Group to an alcohol?
- (A)
  $H_{2} / N I$
- (B)
  $H_{2} / P t$
- (C)
  $N a B H_{4}$
- (D)
  $L i A l H_{4}$
Q1(12)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
The state of hybridization of Carbon atom in methane is
- (A)
  $s p^{3}$
- (B)
  $s p^{2}$
- (C)
  $s p$
- (D)
  $d s p^{2}$
Q1(13)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
Fungicides are the pesticides which
- (A)
  Control the growth of fungus
- (B)
  Kill insects
- (C)
  Kill plants
- (D)
  Kill herbs
Q1(14)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
Among group VA elements, the most electronegative element is
- (A)
  $S b$
- (B)
  $N$
- (C)
  $P$
- (D)
  $A s$
Q1(15)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
Keeping in view the size of atoms, which order is the correct one?
- (A)
  $M g > S r$
- (B)
  $B a > M g$
- (C)
  $L u > C e$
- (D)
  $C l > I$
Q1(16)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
Which of the following reagents will react with both aldehydes & ketones?
- (A)
  Grignard Reagent
- (B)
  Tollen’s Reagent
- (C)
  Fehling’s Reagent
- (D)
  Benedict’s Reagent
Q1(17)
You have four choices for each objective type question as A, B, C and D. The choice which you think is correct, fill that circle in front of the relevant question number. Use marker or pen to fill in the circles. Cutting or filling of two or more circles will result zero mark in that question.
For which mechanism, the first step involved is the same
- (A)
  $E 1$ and $E 2$
- (B)
  $E 2$ and $S_{N} 2$
- (C)
  $S_{N} 1$ and $E 2$
- (D)
  $E 1$ and $S_{N} 1$