Which of the following are water-soluble vitamins ?
This MPSC previous-year question is drawn from MPSC Group B Combined Pre 2026 (English). It belongs to the Science section and is reproduced here in English exactly as it appeared in the official Maharashtra Public Service Commission paper, along with the four options, the official Set A answer key and a compact explanation of why the correct option is correct.
Correct answer: C
Explanation
The verified answer here is option C. The water-soluble vitamins are the Vitamin B-complex group and Vitamin C; vitamins A, D, E and K are the fat-soluble ones. So B-complex plus C is the water-soluble set.
Why this question matters
The Maharashtra Public Service Commission recycles science question patterns across its main five recruitment examinations. Solving a PYQ from one paper substantially increases your accuracy on adjacent papers because the underlying facts and the option-craft are identical. That cross-transfer is the strongest argument for prioritising PYQ practice over generic textbook review.
How to attempt this in the exam
Cover the options with your hand and try to answer the question in your own words first. Then reveal the options and pick the one closest to your mental answer. This inversion habit is especially valuable for science items where three of the four options are designed to be superficially plausible.
Subject-specific tip
Tip for Science: write the underlying formula or chemical equation in the margin. MPSC Science numericals are usually one-step substitutions; the trap is in the units, not the concept.
General Science for MPSC — school-syllabus foundations
MPSC's General Science section stays close to the State Board and NCERT Class 8–10 syllabus. Physics contributes numerical items on motion, force, work-energy, sound, light (reflection / refraction / lenses), electricity (Ohm's law, series-parallel circuits) and magnetism. Chemistry contributes acids-bases-salts, atomic structure, the periodic table, chemical bonding, common industrial processes (contact process for H₂SO₄, Haber's process for NH₃) and everyday chemistry (soaps, plastics, alloys). Biology carries the largest share — cell structure, plant kingdom classification, animal kingdom classification, human physiology (digestive, respiratory, circulatory, excretory, nervous, endocrine systems), reproduction, genetics and communicable diseases.
The single highest-yield chapter is human physiology — every MPSC prelim in the last decade has at least four questions from it. Learn each system as a triplet: the primary organ, the primary hormone or enzyme, and the primary disease if the system malfunctions. That triplet compresses hundreds of textbook pages into a memorable one-line schema per system.
Modern topics MPSC has started asking include: renewable-energy technologies (solar PV, wind, biofuels), space technology (ISRO's launch vehicles PSLV / GSLV / SSLV, recent Chandrayaan-3 and Aditya L1 missions), biotechnology (CRISPR, mRNA vaccines) and environment (climate-change protocols from Kyoto 1997 through Paris 2015 to Glasgow COP26). Our Science topic-wise packs on the practice page include 41 dedicated tests covering every one of these subjects.
Source and editorial process
Source: MPSC Group B Combined Pre 2026 (English). This question, its four options and the marked correct answer are transcribed verbatim from the official Maharashtra Public Service Commission Set A paper. Our editorial team cross-checks each question against the original PDF released on mpsc.gov.in and against the corresponding official answer key.
We never paraphrase the wording. Where MPSC has issued a revised key after an objection round, the answer highlighted above reflects the revised key and the revision is logged in our internal change-log. If you spot a discrepancy, please email us at dontknowacademy@gmail.com — we acknowledge every report within 24 hours and push a fix within 48 hours.
Related study material
Deepen your preparation on this topic with our long-form MPSC study guides. Every guide is written specifically for the Maharashtra Public Service Commission preliminary syllabus and takes twelve to sixteen minutes to read in full.
- MPSC Exam PatternGroup B, Group C, PSI, Gazetted CS & TS prelims — marks, syllabus, negative marking, cut-offs.
- MPSC Preparation Strategy6-month plan, book list, daily routine, PYQ usage, mock-test strategy.
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About MPSC PYQ QUIZ
MPSC PYQ QUIZ is a free educational platform by Don't know Academy that helps Maharashtra Public Service Commission aspirants practise with the complete archive of previous-year questions. Every paper on the site is sourced from the official MPSC release, tagged by subject and topic, and paired with the official Set A answer key. The platform is independent and not affiliated with MPSC, the Government of Maharashtra or any government body — please read our Disclaimer for the full statement.