# Chemistry Mcqs with Solved Answers & 2026 Past Papers (Page 26) | TestPrep > Practice verified Chemistry Mcqs with answers, detailed explanations, and 2026 past papers syllabus for FPSC, PPSC, NTS, CSS, and PMS exams in Pakistan. --- Official 2026 Examination Syllabus Verified Answers # Chemistry Mcqs Solved MCQs Showing 501 – 520 of **1,530** verified multiple choice questions with explanations and past paper analysis. - [Take Chemistry Mcqs Quiz](https://test-prep.blog/quiz/smart?category=chemistry-mcqs) Q501 NTS / FPSC / PPSC - [### Methanol can be obtained from _____ ?](https://test-prep.blog/mcq/methanol-can-be-obtained-from-7aac436d-7821-4503-96b5-8ee375fdf8f0) A. water gas B. destructive distillation of wood C. methane D. all Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/methanol-can-be-obtained-from-7aac436d-7821-4503-96b5-8ee375fdf8f0) Q502 NTS / FPSC / PPSC - [### Ethanol can be converted into ethanoic acid by _____ ?](https://test-prep.blog/mcq/ethanol-can-be-converted-into-ethanoic-acid-by-5b7334bf-4488-4335-a9d9-00b5c6edbf38) A. Hydrogenation B. Hydration C. Oxidation D. Fermentation Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/ethanol-can-be-converted-into-ethanoic-acid-by-5b7334bf-4488-4335-a9d9-00b5c6edbf38) Q503 NTS / FPSC / PPSC - [### Treating phenol with formaldehyde in the presence of dilute base forms Bakelite. The process involved is _____ ?](https://test-prep.blog/mcq/treating-phenol-with-formaldehyde-in-the-presence-of-dilute-base-forms-bakelite--ab3117b9-a578-4fa9-b134-d568434515f8) A. oxidation B. elimination C. condensation polymerization D. additional polymertization Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/treating-phenol-with-formaldehyde-in-the-presence-of-dilute-base-forms-bakelite--ab3117b9-a578-4fa9-b134-d568434515f8) Q504 NTS / FPSC / PPSC - [### Heating phenol with Zn will yield _____ ?](https://test-prep.blog/mcq/heating-phenol-with-zn-will-yield-0b657091-987a-45c0-b556-89606a7bf132) A. Benzene B. Benzoic acid C. Phenoxide D. Cyclohexane Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/heating-phenol-with-zn-will-yield-0b657091-987a-45c0-b556-89606a7bf132) Q505 NTS / FPSC / PPSC - [### Which compound is also known by the name of carbolic acid ?](https://test-prep.blog/mcq/which-compound-is-also-known-by-the-name-of-carbolic-acid-efa62db3-d10e-4237-b94b-9b6d192ae601) A. C2H2OH B. H2CO3 C. C6H5OH D. H3PO3 Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/which-compound-is-also-known-by-the-name-of-carbolic-acid-efa62db3-d10e-4237-b94b-9b6d192ae601) Q506 NTS / FPSC / PPSC - [### Which alcohol will undergo elimination reaction to give alkene in the presence of acidic potassium dichromate ?](https://test-prep.blog/mcq/which-alcohol-will-undergo-elimination-reaction-to-give-alkene-in-the-presence-o-ef4b93a7-d3fc-482a-80e2-fc6c2e39dee3) A. Primary alcohol B. Secondary alcohol C. Tertiary alcohol D. All of above Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/which-alcohol-will-undergo-elimination-reaction-to-give-alkene-in-the-presence-o-ef4b93a7-d3fc-482a-80e2-fc6c2e39dee3) Q507 NTS / FPSC / PPSC - [### K2Cr2O7/H2SO4 generate _____ ?](https://test-prep.blog/mcq/k2cr2o7h2so4-generate-1035d63e-4481-4706-8173-a275a01b700d) A. Oxygen B. Hydrogen C. Nascent oxygen[O] D. Nascent hydrogen[H] Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/k2cr2o7h2so4-generate-1035d63e-4481-4706-8173-a275a01b700d) Q508 NTS / FPSC / PPSC - [### The process of fermentation of starch involve many enzymes the sequence of enzymes used are _____ ?](https://test-prep.blog/mcq/the-process-of-fermentation-of-starch-involve-many-enzymes-the-sequence-of-enzym-f9167745-006d-4a97-a25f-48074a6f0064) A. Diastase-maltase-zymase B. Zymase-maltase-diastase C. Maltase-diastase-zymase D. Diastase-zymase-maltase Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/the-process-of-fermentation-of-starch-involve-many-enzymes-the-sequence-of-enzym-f9167745-006d-4a97-a25f-48074a6f0064) Q509 NTS / FPSC / PPSC - [### The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called _____ ?](https://test-prep.blog/mcq/the-residue-obtained-after-the-crystallization-of-sugar-from-concentrated-sugar--4b76253a-e48d-4056-aa12-1d6d5ed5c87d) A. Mother liquor B. Filterate C. Extract D. Molasses Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/the-residue-obtained-after-the-crystallization-of-sugar-from-concentrated-sugar--4b76253a-e48d-4056-aa12-1d6d5ed5c87d) Q510 NTS / FPSC / PPSC - [### Which one of the following is also known as tartaric acid ?](https://test-prep.blog/mcq/which-one-of-the-following-is-also-known-as-tartaric-acid-f5aae742-a764-4374-9233-a517a95bed4c) A. 2 3-dihydroxy butance 1 4 -dioic acid B. 2 3 -dihydroxy butanedioic acid C. 2 3 -dihydroxy butanioc acid D. 2 2 -dihydroxy butanoic acid Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/which-one-of-the-following-is-also-known-as-tartaric-acid-f5aae742-a764-4374-9233-a517a95bed4c) Q511 NTS / FPSC / PPSC - [### Which one of the following is termed as benzul alcohol ?](https://test-prep.blog/mcq/which-one-of-the-following-is-termed-as-benzul-alcohol-3c551a7d-f4d0-4318-8870-1923e0064792) A. C6H5OH B. C6H5CH(OH)2 C. C6H5CH2OH D. C6H5COOH Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/which-one-of-the-following-is-termed-as-benzul-alcohol-3c551a7d-f4d0-4318-8870-1923e0064792) Q512 NTS / FPSC / PPSC - [### Alkyl halides undergo a type of reaction _____ ?](https://test-prep.blog/mcq/alkyl-halides-undergo-a-type-of-reaction-b1dc297d-5d39-45f7-80fc-48d0a3af38d3) A. Nucleophilic substitution B. Nucleophilic addition C. Elimination D. both A & C Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/alkyl-halides-undergo-a-type-of-reaction-b1dc297d-5d39-45f7-80fc-48d0a3af38d3) Q513 NTS / FPSC / PPSC - [### Ethylene epoxide treated with Grignards reagent followed by acid hydrolysis yield _____ ?](https://test-prep.blog/mcq/ethylene-epoxide-treated-with-grignards-reagent-followed-by-acid-hydrolysis-yiel-becfa1d8-4b12-49cf-a0a1-5ded57af8806) A. primary alcohol B. secondary alcohol C. tertiary alcohol D. dihydric alcohol Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/ethylene-epoxide-treated-with-grignards-reagent-followed-by-acid-hydrolysis-yiel-becfa1d8-4b12-49cf-a0a1-5ded57af8806) Q514 NTS / FPSC / PPSC - [### Which one of the following reactants will be required to form straight chain alcohol by using Grignard reagent _____ ?](https://test-prep.blog/mcq/which-one-of-the-following-reactants-will-be-required-to-form-straight-chain-alc-be403d98-a84c-4599-9503-e7eb727c1d06) A. formaldehyde B. ketone C. ethylene epoxide D. both A & C Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/which-one-of-the-following-reactants-will-be-required-to-form-straight-chain-alc-be403d98-a84c-4599-9503-e7eb727c1d06) Q515 NTS / FPSC / PPSC - [### Alkyl halides are considered to be very reactive compounds towards nucleophile because _____ ?](https://test-prep.blog/mcq/alkyl-halides-are-considered-to-be-very-reactive-compounds-towards-nucleophile-b-c746da12-f52f-4789-8d46-d014361f56da) A. they have an electrophilic carbon B. they have an electrophilic carbon & a good leaving group C. they have an electrophilic carbon & a bad leaving group D. they have a nucleophilic carbon & a good leaving group Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/alkyl-halides-are-considered-to-be-very-reactive-compounds-towards-nucleophile-b-c746da12-f52f-4789-8d46-d014361f56da) Q516 NTS / FPSC / PPSC - [### For which mechanisms the first step involved is the same ?](https://test-prep.blog/mcq/for-which-mechanisms-the-first-step-involved-is-the-same-b8f4f70d-e050-4d36-af3d-f9d06164406c) A. E1 + E2 B. E2 + SN2 C. E1 and SN1 D. SN1 and SN2 Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/for-which-mechanisms-the-first-step-involved-is-the-same-b8f4f70d-e050-4d36-af3d-f9d06164406c) Q517 NTS / FPSC / PPSC - [### SN2 reaction can be best carried out with _____ ?](https://test-prep.blog/mcq/sn2-reaction-can-be-best-carried-out-with-6616a3fa-2dc0-4153-8e4b-2c4ede6091b2) A. primary alkyl halide B. secondary alkyl halide C. tertiary alkyl halide D. all Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/sn2-reaction-can-be-best-carried-out-with-6616a3fa-2dc0-4153-8e4b-2c4ede6091b2) Q518 NTS / FPSC / PPSC - [### When CO2 is made to react with ethyl magnesium iodide followed by acid hydrolysis the product formed is _____ ?](https://test-prep.blog/mcq/when-co2-is-made-to-react-with-ethyl-magnesium-iodide-followed-by-acid-hydrolysi-590e687b-7e26-4ac9-8b51-936ca9769b2e) A. propane B. propanoic acid C. propanal D. propanol Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/when-co2-is-made-to-react-with-ethyl-magnesium-iodide-followed-by-acid-hydrolysi-590e687b-7e26-4ac9-8b51-936ca9769b2e) Q519 NTS / FPSC / PPSC - [### When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed ?](https://test-prep.blog/mcq/when-two-moles-of-ethyl-chloride-react-with-two-moles-of-sodium-in-the-presence--18ac406f-3df2-49b5-b3e4-92b278241ba4) A. 2 moles of ethane B. 1 mole of ethane C. 2 moles of butane D. 1 mole of butane Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/when-two-moles-of-ethyl-chloride-react-with-two-moles-of-sodium-in-the-presence--18ac406f-3df2-49b5-b3e4-92b278241ba4) Q520 NTS / FPSC / PPSC - [### Which alkyl halide out of the following may follow both SN1 and SN2 mechanism ?](https://test-prep.blog/mcq/which-alkyl-halide-out-of-the-following-may-follow-both-sn1-and-sn2-mechanism-7c328e92-5621-4fb9-979b-646c51db4100) A. CH3-X B. (CH3)3 C-CH2 – X C. (CH3)2 CH – X D. (CH3)3 C – X Reveal Answer - [View Full Details & Discussion →](https://test-prep.blog/mcq/which-alkyl-halide-out-of-the-following-may-follow-both-sn1-and-sn2-mechanism-7c328e92-5621-4fb9-979b-646c51db4100) - [Previous Page](https://test-prep.blog/categories/chemistry-mcqs?page=25)Page 26 of 77 - [Next Page](https://test-prep.blog/categories/chemistry-mcqs?page=27) Editorial Analysis & Exam Strategy ## Chemistry Mcqs Preparation Guide for Competitive Exams The Chemistry Mcqs section constitutes one of the highest-weightage modules across major competitive recruiting tests conducted by FPSC, PPSC, SPSC, KPPSC, BPSC, NTS, and the CSS Screening (MPT). Candidates who systematically practice verified solved past questions attain a statistically verified 42% higher score on negative-marking objective papers. #### FPSC (Federal Public Service Commission) 20% - 50% of General Ability Paper Questions emphasize analytical depth, conceptual definitions, and contemporary developments. #### PPSC (Punjab Public Service Commission) 15% - 25% of 100-mark One-Paper MCQs Strong focus on direct factual accuracy, past paper repetitions, and textbook fundamentals. #### NTS (National Testing Service) 25% - 35% of GAT & NAT Tests Strict timing constraints (approx. 50 seconds per MCQ). Rapid recall is critical. #### CSS & PMS Compulsory 20 MCQs (20 Marks) in each Compulsory Subject Qualifying threshold determinant. Correct answers in objective sections secure merit ranking. ### Proven Study Methodology Topic-Wise Mastery: Begin by solving questions in batches of 20 with immediate answer verification. Negative Marking Shield: In competitive exams, guessing indiscriminately carries a 0.25 mark penalty. Practice identifying questions where you can eliminate 2 incorrect distractors before attempting. Smart Spaced Repetition: Use our Bookmark and Mistake Revision engines to re-test incorrectly answered questions within 48 hours to lock them into long-term memory. Timed Speed Runs: Attempt the Daily Study Challenge under timed conditions to build test-day cognitive endurance. ### Frequently Asked Questions about Chemistry Mcqs #### How many questions are included in the Chemistry Mcqs repository? Our repository contains verified multiple choice questions for Chemistry Mcqs, regularly curated and cross-referenced with official past papers from 2018 to 2026. #### Are these Chemistry Mcqs MCQs relevant for 2026 exams? Yes, all questions have been reviewed and updated to conform to the latest 2026 syllabus announcements issued by FPSC, PPSC, NTS, and provincial testing boards. #### Does Chemistry Mcqs practice include answer explanations? Yes, each question features verified correct answers with explanatory context, historical references, and verified citations. #### Can I practice Chemistry Mcqs questions in interactive quiz mode? Yes, click 'Take Chemistry Mcqs Quiz' to launch our Smart Adaptive practice engine, customize question counts, and track your accuracy score in real-time. --- *Source: https://test-prep.blog/categories/chemistry-mcqs?page=26* *Format: Markdown for Agents (Content Negotiation: text/markdown)*