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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.

📘 Alcohols Phenols and Ethers MCQs
📘 Aldehydes and Ketones MCQs
📘 Aliphatic Hydrocarbons MCQs
📘 Alkyl Halides MCQs
📘 Aromatic Hydrocarbons MCQs
📘 Atomic Structure MCQs
📘 Basic Concept MCQs
📘 Carboxylic Acids MCQs
📘 Chemical Bonding MCQs
📘 Chemical Equilibrium MCQs
📘 Chemical Kinetics MCQs
📘 Chemistry Diagnostic Test MCQs
📘 Common Chemical Industries MCQs
📘 Electrochemistry MCQs
📘 Environmental Chemistry MCQs
📘 Experimental Techniques MCQs
📘 Gases MCQs
📘 Group 3A and 4A Elements MCQs
📘 Group 5A and 6A Elements MCQs
📘 Liquids and Solids MCQs
📘 Macromolecules MCQs
📘 Organic Chemistry MCQs
📘 Periodic Classification Of Elements MCQs
📘 S-Block Elements MCQs
📘 Solutions MCQs
📘 The Halogens and The Noble Gases MCQs
📘 ThermoChemistry MCQs
📘 Transition Elements MCQs

161. The formula of starch is

September 17, 2025 by Admin
A. C12H22O11
B. C6H10O5
C. (C6H10O5)n
D. C6H12O6
✅ The correct answer is option C.
Categories Alcohols Phenols and Ethers MCQs, Chemistry Tags Alcohols Phenols and Ethers MCQs, Chemistry MCQs Leave a comment

162. K2 (Cu(CN)4) which one is correct

September 17, 2025 by Admin
A. Potassium tetra cyano recuperate
B. Co-ordination number is 2
C. The ligand is positively charged
D. Central atom is present in the avionic sphere
✅ The correct answer is option D.
Categories Chemistry, Transition Elements MCQs Tags Chemistry MCQs, Transition Elements MCQs Leave a comment

163. The molecular formula of toluene is

September 17, 2025 by Admin
A. C7H7
B. C7H8
C. C8H8
D. C8H7
✅ The correct answer is option B.
Categories Aromatic Hydrocarbons MCQs, Chemistry Tags Aromatic Hydrocarbons MCQs, Chemistry MCQs Leave a comment

164. The process of fermentation of starch involves many enzymes the sequence of enzymes used are

September 17, 2025 by Admin
A. Diastase-maltase-zymase
B. Zymase-maltase-diastase
C. Maltase-diastase-zymase
D. Diastase-zymase-maltase
✅ The correct answer is option A.
Categories Alcohols Phenols and Ethers MCQs, Chemistry Tags Alcohols Phenols and Ethers MCQs, Chemistry MCQs Leave a comment

165. The oxidation number of the central metal atom in [Ni(CO)4] is

September 17, 2025 by Admin
A. 0
B. 2
C. 4
D. 6
✅ The correct answer is option C.
Categories Chemistry, Transition Elements MCQs Tags Chemistry MCQs, Transition Elements MCQs Leave a comment

166. In benzene sulphonic acid the sulphonic group is attached with benzene ring through

September 17, 2025 by Admin
A. Hydrogen
B. Oxygen
C. Sulphur
D. -OH
✅ The correct answer is option C.
Categories Aromatic Hydrocarbons MCQs, Chemistry Tags Aromatic Hydrocarbons MCQs, Chemistry MCQs Leave a comment

167. The rectified spirit contains

September 17, 2025 by Admin
A. 12% alcohol
B. 90% alcohol
C. 95% alcohol
D. 100% alcohol
✅ The correct answer is option C.
Categories Alcohols Phenols and Ethers MCQs, Chemistry Tags Alcohols Phenols and Ethers MCQs, Chemistry MCQs Leave a comment

168. Group VIB of transition elements contains

September 17, 2025 by Admin
A. Zn Cd Hg
B. Fe Ru Os
C. Cr Mo W
D. Mn Te Re
✅ The correct answer is option C.
Categories Chemistry, Transition Elements MCQs Tags Chemistry MCQs, Transition Elements MCQs Leave a comment

169. Phenanthrene is a fused polycyclic compound contains ______ benzene rings

September 17, 2025 by Admin
A. 2
B. 3
C. 4
D. 5
✅ The correct answer is option B.
Categories Aromatic Hydrocarbons MCQs, Chemistry Tags Aromatic Hydrocarbons MCQs, Chemistry MCQs Leave a comment

170. K2Cr2O7/H2SO4 generate

September 17, 2025 by Admin
A. Oxygen
B. Hydrogen
C. Nascent oxygen[O]
D. Nascent hydrogen[H]
✅ The correct answer is option C.
Categories Alcohols Phenols and Ethers MCQs, Chemistry Tags Alcohols Phenols and Ethers MCQs, Chemistry MCQs Leave a comment
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