A. F2
B. Cl2
C. Br2
D. I2
✅ The correct answer is option B.
Chemistry
Practice the latest Chemistry MCQs with answers and explanations to prepare for exams and job tests. Our collection covers key topics such as atomic structure, periodic table, chemical bonding, organic chemistry, inorganic chemistry, physical chemistry, and environmental chemistry. These Chemistry multiple-choice questions are designed for students, competitive exam aspirants, and professionals appearing in NTS, PPSC, FPSC, CSS, PMS, university entry tests, and medical admission tests. Improve your concepts and problem-solving skills with our updated and comprehensive Chemistry MCQs online.
232. The octet rule does not always hold for which of the following elements
A. C
B. O
C. F
D. P
✅ The correct answer is option D.
233. The fertility of the soil is improved by
A. Rotation of the crops
B. Adding lime to the acid salts
C. Adding manure and growing legumes
D. All
✅ The correct answer is option D.
234. Which one of the following is the weakest acid in water
A. HF
B. HCI
C. HBr
D. HI
✅ The correct answer is option A.
235. Which of the solid does not contain a covalent bond
A. Copper
B. Ice
C. Diamond
D. Graphite
✅ The correct answer is option A.
236. Which of the following is an incorrect statement about nitrogen importance?
A. It enhances plant growth
B. It is involved in the synthesis of protein and nucleic acids
C. it accelerates fruits and flowers growth
D. It is involved in the chlorophyll synthesis
✅ The correct answer is option C.
237. The halogen which reacts very slowly with halogen is
A. Fluorine
B. Chlorine
C. Bromine
D. Iodine
✅ The correct answer is option D.
238. Which of the following is the best explanation that CO2 is a non-polar molecule
A. Linear geometry
B. The dipole moment is zero
C. Sp hybridization
D. None
✅ The correct answer is option B.
239. The fertilizers which provide single nutrient from NPK are called ______ fertilizer.
A. Straight
B. Compound
C. Both A and B
D. None of the above
✅ The correct answer is option A.
240. Which of the following represents the correct electronic configuration of VII A group elements in the ground state?
A. ns2p2
B. ns2p4
C. ns2p5
D. ns2p6
✅ The correct answer is option C.