PMS · PMS · 2026
Solved Chemistry & Biology tricky GK practice set — 50 MCQs with verified answers and explanations (LPG, sucrose, formulas, enzymes, organs, vitamins, units). A Sir Adnan practice set for PMS Screening preparation, not an official past paper.
Paper Snapshot
Questions
50
Time
50
Minutes
Subjects
1
Topics
1
Read mode shows correct answers. Attempt mode hides answers, starts timer, and shows your result after submission.
About this paper
A Sir Adnan one-liner set headed 'Chemistry & Biology Tricky (GK) / ONE-LINER (PPSC/FPSC NEW TREND 2026-27)' from the monster-data 'PMS SCREENING 2026 GK UPDATED' pack. The booklet prints 50 numbered items in a question + answer table (3 pp, no options); all 50 are published here in the standard MCQ format with verified answers and explanations, 0 dropped, 0 corrections and 7 NOTE flags (pH temperature, rusting moisture, atom wording, boiling-point pressure, red-blood-cell nuclei, pulses protein wording, inner-ear balance).
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Subject 1
Topic Section
50 solved MCQs shown directly below
Correct Answer: Propane and Butane
Liquefied petroleum gas (LPG) is mainly a mixture of propane and butane.
Correct Answer: Glucose and Fructose
Sucrose is a disaccharide made of one glucose molecule and one fructose molecule.
Correct Answer: H₂O
A water molecule has two hydrogen atoms and one oxygen atom: H₂O.
Correct Answer: Carbon Dioxide
Plants take in carbon dioxide for photosynthesis and release oxygen as a by-product.
Correct Answer: Skin
The skin is the body's largest organ, covering about 2 square metres in an adult.
Correct Answer: Mitochondria
Mitochondria generate most of the cell's energy as ATP, hence the powerhouse label.
Correct Answer: Gene
A gene is the unit of heredity: a segment of DNA that carries the instructions for a trait.
Correct Answer: Methane
Natural gas consists mostly of methane, with smaller amounts of ethane and other hydrocarbons.
Correct Answer: 7
Pure water is neutral, with pH 7 at 25°C.
Correct Answer: Mercury
Mercury is the only metal that is liquid at ordinary room temperature.
Correct Answer: Vitamin D
Sunlight on the skin triggers the synthesis of vitamin D, the sunshine vitamin.
Correct Answer: Sodium Chloride
Common table salt is sodium chloride, NaCl.
Correct Answer: Fermentation
Yeast fermentation converts sugars into ethanol (alcohol) and carbon dioxide.
Correct Answer: Oxygen
Iron rusts when it reacts with oxygen in the presence of water, forming iron oxides.
Correct Answer: Atom
The atom is the smallest unit of matter that retains the chemical properties of an element.
Correct Answer: Femur
The femur, the thigh bone, is the longest and strongest bone in the human body.
Correct Answer: Water
Water is called the universal solvent because it dissolves more substances than any other liquid.
Correct Answer: Hemoglobin
Haemoglobin, the iron-containing pigment in red blood cells, carries oxygen and gives blood its red colour.
Correct Answer: NH₃
An ammonia molecule has one nitrogen atom and three hydrogen atoms: NH₃.
Correct Answer: Kidney
The kidneys filter the blood, removing waste and excess water as urine.
Correct Answer: Carbohydrates
Carbohydrates, broken down to glucose, are the body's primary energy source.
Correct Answer: Argon
Electric bulbs are commonly filled with argon, an inert gas that protects the filament.
Correct Answer: 100°C
Water boils at 100°C at standard atmospheric pressure.
Correct Answer: Chlorophyll
Chlorophyll, in the chloroplasts, is the green pigment that captures light for photosynthesis.
Correct Answer: Entomology
Entomology is the branch of zoology that studies insects.
Correct Answer: Au
Gold's symbol Au comes from its Latin name, aurum.
Correct Answer: Nephron
The nephron is the kidney's filtering unit, producing urine from the blood.
Correct Answer: Acetic Acid
Vinegar is a dilute solution of acetic acid (about 5%) in water.
Correct Answer: Heart
The heart pumps blood through the arteries, veins and capillaries of the body.
Correct Answer: CO₂
A carbon dioxide molecule has one carbon atom and two oxygen atoms: CO₂.
Correct Answer: Tooth Enamel
Tooth enamel, the outer covering of the teeth, is harder than bone.
Correct Answer: Carbon Dioxide
Carbon dioxide smothers a fire by displacing oxygen around the flames.
Correct Answer: Red Blood Cell
Mature mammalian red blood cells have no nucleus, leaving more room for haemoglobin.
Correct Answer: Sodium Bicarbonate
Baking soda is sodium bicarbonate, also called sodium hydrogen carbonate (NaHCO₃).
Correct Answer: Liver
The liver is the largest gland in the human body and also the largest internal organ.
Correct Answer: Zinc
Galvanization coats iron or steel with zinc to protect it from rusting.
Correct Answer: Stapes
The stapes, one of the three middle-ear bones, is the smallest bone in the body.
Correct Answer: Transport Oxygen
Red blood cells carry oxygen from the lungs to the tissues via haemoglobin.
Correct Answer: CH₄
A methane molecule has one carbon atom and four hydrogen atoms: CH₄.
Correct Answer: Botany
Botany is the branch of biology devoted to the study of plants.
Correct Answer: Enzyme
Enzymes are biological catalysts: they speed up chemical reactions without being used up.
Correct Answer: Amino Acids
Proteins are built from amino acids, and pulses supply protein in the form of its amino-acid building blocks.
Correct Answer: Vitamin K
Vitamin K is required to make the blood-clotting factors in the liver.
Correct Answer: Fe
Iron's symbol Fe comes from its Latin name, ferrum.
Correct Answer: Ear
The organs of balance sit in the inner ear and sense head movement and position.
Correct Answer: Methane
Biogas is mostly methane (roughly 50–75%), with carbon dioxide as the second component.
Correct Answer: Ampere
The ampere is the SI unit of electric current.
Correct Answer: Nucleus
The nucleus holds the cell's DNA and directs its activities.
Correct Answer: Calcium Hypochlorite
Bleaching powder is calcium hypochlorite, Ca(OCl)₂.
Correct Answer: Anatomy
Anatomy is the study of the structure of the human body.
Source & verification
Built by GK360 from verified bank questions — every answer rechecked before publishing. Where the source printed no options, the answer options were prepared by GK360; the questions and correct answers are the verified originals.
Questions
No. It is a Sir Adnan one-liner practice set on chemistry and biology, prepared for PMS Screening 2026. It is published as paperType 'practice', never as a past paper, and the year 2026 is the booklet's label, not a claimed exam session.
Mercury, the only metal that is liquid at ordinary room temperature.
The nephron, the kidney's filtering unit.
The source prints question + answer only, with no options. Under Anas's 2026-10-28 single-format decision, each item is published in the standard MCQ format with 3 authored plausible distractors; optionsSource is recorded as 'authored' so authored options are never mistaken for the booklet's.
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