CSS · Federal Public Service Commission · 2026
Solved CSS MPT Everyday Science practice set from the 1000 Advanced Booklet, Q151–200 — 50 MCQs with verified answers and explanations (Pakistan mines, largest mines in the world, mineral uses, gemstones). A practice compilation, not a past paper.
Paper Snapshot
Questions
50
Time
50
Minutes
Subjects
1
Topics
5
Read mode shows correct answers. Attempt mode hides answers, starts timer, and shows your result after submission.
About this paper
Part 4 (Q151–200) of the Sir Adnan '1000 Advanced Booklet Everyday Science' one-liner compilation (monster-data 'CSS MPT PAST PAPERS' pack). The booklet prints statement + answer only, so each item is published in the standard MCQ format with 3 authored plausible distractors under Anas's 2026-10-28 single-format decision and optionsSource recorded as 'authored'. All 50 printed items are published with no drops. One correction: Q157 largest gold mine is published as Muruntau (Uzbekistan), not the booklet's Grasberg. Four NOTE flags: Q158 (Mirny is the largest open-pit diamond mine), Q169 (titanium alloys mainly in fan/compressor sections), Q179 (red phosphorus sits on the striking surface in safety matches), Q193 (copper sheathing vs copper-nickel alloys). This is a practice set, never titled as a past paper, and Q201–1000 remain for later runs.
Paper Controls
Subject 1
Topic Section
6 solved MCQs shown directly below
Correct Answer: 1998 (Chagai, Balochistan)
Pakistan conducted its first nuclear tests on 28 May 1998 at Chagai, Balochistan (Chagai-I).
Correct Answer: Dera Ghazi Khan
Pakistan's first uranium mine was opened at Baghalchur in Dera Ghazi Khan district (uranium discovered there in 1959; mining began 1977-78).
Correct Answer: Copper & Gold
Reko Diq in Balochistan is a large copper-gold deposit, one of the world's largest undeveloped copper-gold projects.
Correct Answer: Copper & Gold
Saindak in Balochistan is mined for copper, with gold (and silver) as by-products.
Correct Answer: Rock Salt
Khewra mine in Punjab is famous for rock salt, the source of Himalayan pink salt.
Correct Answer: Khewra Salt Mine
Khewra Salt Mine in Pakistan is the world's second-largest salt mine, after the Sifto (Goderich) mine in Canada.
Topic Section
7 solved MCQs shown directly below
Correct Answer: Muruntau (Uzbekistan)
Muruntau in Uzbekistan is widely regarded as the world's largest gold mine by reserves and annual production.
Correct Answer: Mirny (Russia)
Mirny (Mir) in Siberia, Russia, is the largest open-pit diamond mine in the world, 525 m deep and 1,200 m across.
Correct Answer: Escondida (Chile)
Escondida in Chile is the world's largest copper mine by output, producing roughly a million tonnes of copper a year.
Correct Answer: Carajás (Brazil)
Carajás in Pará, Brazil, operated by Vale, is the largest iron ore mine in the world.
Correct Answer: McArthur River (Canada)
McArthur River in Saskatchewan, Canada, is the world's largest high-grade uranium mine.
Correct Answer: Weipa (Australia)
Weipa in Queensland, Australia, is the world's largest bauxite-producing mine, operated by Rio Tinto.
Correct Answer: Penasquito (Mexico)
Peñasquito in Zacatecas, Mexico, is the world's largest silver mine by reserves and output.
Topic Section
17 solved MCQs shown directly below
Correct Answer: Iron
Steel is made chiefly from iron, alloyed with carbon and other elements.
Correct Answer: Chromium
Chromium is the alloying element that makes stainless steel resist rust (nickel is also commonly added).
Correct Answer: Iron
Railway tracks are made of steel, whose chief ingredient is iron.
Correct Answer: Silver
Silver (with gold and copper) was a traditional coinage metal long before modern base-metal coinage.
Correct Answer: Bronze (Copper + Tin)
Bells are traditionally cast in bell metal, a bronze alloy of copper and tin.
Correct Answer: Titanium
Titanium alloys are used in aircraft engines for their strength at low weight and resistance to heat.
Correct Answer: Silicon
Silicon is the semiconductor material from which almost all computer chips are made.
Correct Answer: Phosphor minerals
Fluorescent lamps are coated inside with phosphor minerals, which glow when struck by ultraviolet light from the mercury vapour discharge.
Correct Answer: Silver Bromide
Traditional photographic film used silver bromide, which darkens on exposure to light.
Correct Answer: Potash
Potash (potassium salts) is the standard potassium source in fertilizers.
Correct Answer: Apatite
Apatite, a phosphate mineral, is the main raw material for phosphate fertilizers.
Correct Answer: Asbestos
Asbestos, a heat-resistant fibrous mineral, was traditionally used in fireproof materials (its health hazards have since restricted its use).
Correct Answer: Alum
Alum is used in water purification as a coagulant that clumps suspended particles so they settle out.
Correct Answer: Amalgam (Mercury + Silver)
Dental amalgam, an alloy of mercury with silver (and tin and copper), was the traditional tooth-filling material.
Correct Answer: Magnesium
Magnesium burns with a brilliant white light and is used in fireworks (other metals give the colours).
Correct Answer: Phosphorus
Phosphorus is the conventional one-liner answer for matches: it ignites on friction.
Correct Answer: Gypsum
Gypsum is added to cement as a setting agent (retarder) to control how fast it hardens.
Topic Section
15 solved MCQs shown directly below
Correct Answer: Bentonite clay
Bentonite clay absorbs liquid and clumps, which is why it is used in cat litter.
Correct Answer: Quartz
Quartz (silica) is used for optical glass and lenses for its clarity and stability.
Correct Answer: Natural Gas (as feedstock)
Urea is made from ammonia, which is produced mainly from natural gas as feedstock.
Correct Answer: Zeolite
Zeolites exchange their sodium ions for calcium and magnesium ions, softening hard water.
Correct Answer: Lithium
Lithium is the key metal of modern rechargeable lithium-ion batteries.
Correct Answer: Chromium
Chromium forms a thin protective oxide layer on stainless steel, which is what resists rust.
Correct Answer: Lithium & Cobalt
Electric-vehicle batteries are lithium-ion cells, commonly using lithium with cobalt (and nickel/manganese) in the cathode.
Correct Answer: Copper
Copper (as copper sheathing and copper-nickel alloys) protects ships' hulls against fouling and seawater corrosion.
Correct Answer: Titanium Dioxide
Titanium dioxide is the standard white pigment in paints, prized for its opacity and brightness.
Correct Answer: Lead
Lead aprons and shields block X-rays because lead is dense and highly absorbent of radiation.
Correct Answer: Gold
Gold was the basis of ancient currency systems, valued for its rarity, durability and divisibility.
Correct Answer: Lithium & Deuterium
Thermonuclear (hydrogen) weapons use lithium deuteride as fuel, which yields tritium and deuterium for fusion.
Correct Answer: Mica
Mica is an excellent electrical and heat insulator, used in electrical equipment.
Correct Answer: Manganese
Manganese strengthens steel and improves its hardness and wear resistance (manganese steel).
Correct Answer: Gold
Gold has been used for jewellery and ornaments since ancient times for its lustre and resistance to tarnish.
Topic Section
5 solved MCQs shown directly below
Correct Answer: Beryl (with Chromium)
Emerald is the green variety of beryl, coloured by chromium (and sometimes vanadium).
Correct Answer: Corundum (with Chromium)
Ruby is the red variety of corundum, coloured by chromium.
Correct Answer: Corundum (with Iron/Titanium)
Sapphire is corundum in any colour except red, classically blue from iron and titanium impurities.
Correct Answer: Silicate mineral
Topaz is a silicate mineral (aluminium fluorosilicate), prized as a gemstone in many colours.
Correct Answer: Pure Carbon
Diamond is pure carbon crystallised under great pressure, the hardest known natural material.
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. This is a practice set built from the Sir Adnan '1000 Advanced Booklet Everyday Science' one-liner compilation. It is labelled practice in the title, slug and paperType and must not be quoted as an official past paper.
Every item in Q151–200 has a verifiable standard answer (Pakistan mines, the world's largest mines, mineral uses and gemstones). Nothing had to be dropped as unanswerable; one booklet answer was corrected to the standard answer and four items carry NOTE flags.
The source prints statement + answer only, with no (a)-(d) options. Under Anas's 2026-10-28 single-format decision, each item is published in the standard MCQ format with 3 authored plausible distractors; the questions and answers are the booklet's, and every answer was verified as the standard answer. optionsSource is recorded as 'authored' so authored options are never mistaken for the paper's.
Q151–200 cover Pakistan mines and nuclear sites, the world's largest mines, mineral uses in industry and daily life, and gemstones and their minerals. The booklet runs to 1000 items; Q201–1000 are held for later conversion runs in the same format.
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