Matter is composed of?
View answer & explanation Ans: Atoms and molecules
Correct Answer: Atoms and molecules
Matter is composed of atoms and molecules: ordinary matter is built from atoms, which combine into molecules.
PMS · PMS · 2026
Solved PMS 2026 GK practice set Q751-800 from the Sir Adnan 1000 one-liners booklet - atomic structure, ionic and covalent bonds, Newton's laws, pressure, density, specific and latent heat, thermodynamics, oxidation, reduction, acids, bases and salts MCQs with verified answers and explanations. A practice set for PMS Screening preparation, not an official past paper.
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Questions
39
Time
39
Minutes
Subjects
1
Topics
1
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About this paper
A Sir Adnan one-liner booklet headed '1000- PMS 2026 GK / ONE-LINER (Origionally PMS SCREENING Syllabus BREAKDOWN)' from the monster-data 'PMS SCREENING 2026 GK UPDATED' pack (74 pp). This file publishes Q751-800 only, in the standard MCQ format with verified answers and explanations: 39 published, 11 dropped, 0 corrections, 2 NOTE keyFlags. DROPPED as internal duplicates of earlier chunks of the same booklet (cross-linked, not re-extracted): Q752 (= Q104), Q753 (= Q105), Q761 (= Q116), Q788 (= Q137), Q789 (= Q139), Q790 (= Q138), Q795 (= Q135) in pms-2026-gk-1000-one-liners-q101-150.json; Q771 (= Q60), Q772 (= Q61), Q775 (= Q63), Q776 (= Q64) in pms-2026-gk-1000-one-liners-q51-100.json. GATE: see work/gate_pms1000_q751_800.py - max 2 of the first 5 stems in any single bank file at >=0.6 token similarity (760 bank files scanned), so new compilation, not a duplicate. Q801-1000 remain for later runs; the booklet PDF stays in work/pms-screening/.
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Topic Section
39 solved MCQs shown directly below
Correct Answer: Atoms and molecules
Matter is composed of atoms and molecules: ordinary matter is built from atoms, which combine into molecules.
Correct Answer: Negative
An electron's charge is negative: electrons carry a negative elementary charge, opposite to protons.
Correct Answer: Positive
A proton's charge is positive: protons carry a positive elementary charge, opposite to electrons.
Correct Answer: Neutral
A neutron's charge is neutral: neutrons carry no electric charge.
Correct Answer: Force holding atoms together
A chemical bond is the force holding atoms together: the attraction that keeps atoms joined in a molecule or compound.
Correct Answer: Metals & non-metals
An ionic bond forms between metals and non-metals: a metal loses electrons and a non-metal gains them, and the resulting ions attract.
Correct Answer: Non-metals
A covalent bond forms between non-metals: the atoms share pairs of electrons instead of transferring them.
Correct Answer: Metals
A metallic bond occurs in metals: positively charged metal ions sit in a shared 'sea' of delocalised electrons.
Correct Answer: Substance of two or more elements
A compound is a substance of two or more elements chemically combined, in fixed proportions, into a new substance with its own properties.
Correct Answer: Only one type of atom
An element contains only one type of atom: all its atoms have the same atomic number.
Correct Answer: Atomic number
The periodic table arranges elements by atomic number: the modern table orders elements by the number of protons in the nucleus.
Correct Answer: Mass is neither created nor destroyed
The law of conservation of mass states that mass is neither created nor destroyed: in a chemical reaction the total mass of reactants equals the total mass of products.
Correct Answer: Law of inertia
Newton's first law is the law of inertia: a body stays at rest or in uniform motion unless acted on by a net external force.
Correct Answer: F = ma
Newton's second law is F = ma: the net force on a body equals its mass times its acceleration.
Correct Answer: Action = Reaction
Newton's third law is action = reaction: every action has an equal and opposite reaction.
Correct Answer: Rate of change of velocity
Acceleration is the rate of change of velocity: how quickly velocity changes over time, in a given direction.
Correct Answer: Speed in a given direction
Velocity is speed in a given direction: it is a vector, so both magnitude and direction matter.
Correct Answer: Work done per unit time
Power is work done per unit time: the rate at which work is done or energy is transferred.
Correct Answer: Kinetic & potential
Energy types include kinetic and potential: energy of motion and energy stored by position or state.
Correct Answer: Isaac Newton
The law of gravitation was given by Isaac Newton: every mass attracts every other mass with a force proportional to their masses and inversely proportional to the square of the distance between them.
Correct Answer: 9.8 m/s²
Acceleration due to gravity on Earth is 9.8 m/s²: the standard one-liner value for g at the Earth's surface.
Correct Answer: Force per unit area
Pressure is force per unit area: the force applied spread over the area it acts on.
Correct Answer: Pressure
Pascal is the unit of pressure: one pascal equals one newton per square metre.
Correct Answer: Average kinetic energy of particles
Temperature measures the average kinetic energy of particles: hotter particles move, on average, faster.
Correct Answer: K = °C + 273
Celsius to Kelvin conversion is K = °C + 273: add 273 to a Celsius temperature to get kelvin.
Correct Answer: Mass/Volume
Density is mass/volume: the mass of a substance per unit volume.
Correct Answer: Heat required to raise 1g by 1°C
Specific heat is the heat required to raise 1g by 1°C: the heat needed to raise one gram of a substance by one degree Celsius.
Correct Answer: Heat for phase change without temperature change
Latent heat is the heat for phase change without temperature change: heat absorbed or released when a substance melts, boils or condenses, while its temperature stays constant.
Correct Answer: Energy cannot be created or destroyed
The first law of thermodynamics states that energy cannot be created or destroyed: energy is conserved, only converted from one form to another.
Correct Answer: Entropy of isolated system increases
The second law of thermodynamics states that the entropy of an isolated system increases: natural processes tend toward greater disorder.
Correct Answer: Loss of electrons
Oxidation involves loss of electrons: the oxidised species gives up electrons.
Correct Answer: Gain of electrons
Reduction involves gain of electrons: the reduced species takes up electrons.
Correct Answer: H⁺ ions
An acid releases H⁺ ions: in water, acids give hydrogen ions.
Correct Answer: OH⁻ ions
A base releases OH⁻ ions: in water, bases give hydroxide ions.
Correct Answer: Acid + Base
Salt is formed by reaction of acid + base: neutralisation of an acid by a base gives a salt plus water.
Correct Answer: Solute
A solvent dissolves the solute: the solute is the substance dissolved, the solvent is the medium it dissolves in.
Correct Answer: Amount of solute per unit solvent
Solution concentration is the amount of solute per unit solvent: how much solute is present in a given amount of solvent or solution.
Correct Answer: In molten state or in solution
An ionic compound conducts electricity when in molten state or in solution: its ions are then free to move and carry charge, unlike in the rigid solid.
Correct Answer: Usually does not conduct
A covalent compound usually does not conduct electricity: it has no free ions or free electrons to carry charge.
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 part 16 (Q751-800) of a Sir Adnan 1000 one-liner practice booklet 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.
Oxidation is loss of electrons and reduction is gain of electrons; the two always occur together in a redox reaction.
The modern periodic table orders elements by atomic number, the number of protons in the nucleus.
The source prints question + answer only, no options; the options are authored distractors under the 2026-10-28 single-format decision, so optionsSource is 'authored'.
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