A substance which produces hydrogen ion (H+) in aqueous solution is called?
View answer & explanation Ans: Acid
Correct Answer: Acid
By definition, an acid releases hydrogen ions (H+) when dissolved in water.
PMS · PMS · 2026
Solved PMS 2026 GK EDS mixed practice set: 19 MCQs on acids, parasitism, carrying capacity, Deosai Plains, Ibn al-Haytham, the Gandhi-Irwin Pact and more, with verified answers and explanations. A Sir Adnan practice set, not an official past paper.
Paper Snapshot
Questions
19
Time
19
Minutes
Subjects
3
Topics
18
Read mode shows correct answers. Attempt mode hides answers, starts timer, and shows your result after submission.
About this paper
Sir Adnan's 'PMS 2026 GK- EDS ... UPDATED' booklet (3 pp, header 'ONE-LINER (PPSC/FPSC NEW TREND 2025-26)') from the monster-data 'PMS SCREENING 2026 GK UPDATED' pack. It prints 20 mixed GK/EDS one-liners; 19 are published here. Printed Q11 ('activity in relation to changes in environment', booklet answer 'Both stimulus and response') is dropped because no standard tested element is identifiable. Printed Q9 is corrected from the booklet's 1992 to 1994, the year Pakistan simultaneously held the cricket, hockey, squash and snooker world titles. The source prints statement + answer only, so options are authored distractors under the 2026-10-28 single-format decision.
Paper Controls
Subject 1
Topic Section
1 solved MCQs shown directly below
Correct Answer: Acid
By definition, an acid releases hydrogen ions (H+) when dissolved in water.
Topic Section
1 solved MCQs shown directly below
Correct Answer: Ablutophobia
Ablutophobia is the specific phobia of bathing or washing.
Topic Section
2 solved MCQs shown directly below
Correct Answer: 24 Carat
24-carat gold is pure gold (99.9% fine); lower carat values are alloys mixed with other metals.
Correct Answer: Lead
Lead is the metal of the lead-acid battery, the standard rechargeable battery used in vehicles.
Topic Section
1 solved MCQs shown directly below
Correct Answer: Parasitism
In parasitism one organism (the parasite) benefits while the host is harmed.
Topic Section
1 solved MCQs shown directly below
Correct Answer: Carrying capacity
Carrying capacity is the largest population an environment can support indefinitely given its resources.
Topic Section
1 solved MCQs shown directly below
Correct Answer: Calcium carbonate
Chalk is a soft form of limestone, chemically calcium carbonate (CaCO3).
Topic Section
1 solved MCQs shown directly below
Correct Answer: 384,400 km
The average Earth-Moon distance is about 384,400 km (roughly 363,300 km at perigee and 405,500 km at apogee).
Topic Section
1 solved MCQs shown directly below
Correct Answer: Increase in altitude
Air pressure falls as altitude rises because there is less air above pressing down.
Topic Section
1 solved MCQs shown directly below
Correct Answer: Deosai Plains
The Deosai Plains (about 4,114 m) are the highest plateau in Pakistan and the second-highest plateau in the world.
Topic Section
1 solved MCQs shown directly below
Correct Answer: 343 m/s
Sound travels at about 343 metres per second in air at 20 C (about 1,500 m/s is its speed in water).
Topic Section
1 solved MCQs shown directly below
Correct Answer: Identify location of objects on Earth
GPS uses satellite signals to determine the position of a receiver anywhere on Earth.
Topic Section
1 solved MCQs shown directly below
Correct Answer: Ibn al-Haytham
Ibn al-Haytham (Alhazen) explained reflection and refraction in his Book of Optics (Kitab al-Manazir).
Topic Section
1 solved MCQs shown directly below
Correct Answer: Stephenson
George Stephenson's Rocket (1829) is the standard answer for the inventor of the practical steam locomotive.
Topic Section
1 solved MCQs shown directly below
Correct Answer: Helium
Helium is the standard filling for balloons because it is lighter than air and, unlike hydrogen, non-flammable.
Topic Section
1 solved MCQs shown directly below
Correct Answer: Isaac Newton
Newton published the three laws of motion in the Principia (1687).
Topic Section
1 solved MCQs shown directly below
Correct Answer: Radiation
Solar heat crosses the vacuum of space by radiation; conduction and convection need a material medium.
Subject 2
Topic Section
1 solved MCQs shown directly below
Correct Answer: 1994
CORRECTION: the booklet prints 1992, but 1994 is the year Pakistan simultaneously held all four titles - reigning cricket world champions (1992 title, held until 1996), hockey World Cup winners 1994, Jansher Khan squash world champion 1994, and Muhammad Yousuf world amateur snooker champion 1994.
Subject 3
Topic Section
1 solved MCQs shown directly below
Correct Answer: 1931
The Gandhi-Irwin Pact was signed in March 1931; Congress then suspended civil disobedience and attended the Second Round Table Conference later in 1931.
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 Sir Adnan's 'PMS 2026 GK- EDS ... UPDATED' practice booklet from the monster-data 'PMS SCREENING 2026 GK UPDATED' pack, published as paperType 'practice', never as a past paper. The year 2026 is the booklet's label, not a claimed exam session.
19 mixed GK and everyday-science one-liners: acids, phobias, gold carats, parasitism, carrying capacity, chalk, batteries, the Earth-Moon distance, Pakistan's 1994 sporting year, atmospheric pressure, Deosai Plains, the speed of sound, GPS, Ibn al-Haytham, the steam locomotive, the Gandhi-Irwin Pact, balloons, Newton's laws and solar radiation.
Printed Q11 asks about 'the activity in relation to changes in environment' with the booklet answer 'Both stimulus and response'. No standard term or tested element is identifiable from that wording, so it was dropped rather than rewritten, per the unanswerable-as-printed rule.
1992 is only the cricket World Cup year. 1994 is the year Pakistan simultaneously held all four titles: reigning cricket world champions, hockey World Cup winners, Jansher Khan as squash world champion, and Muhammad Yousuf as world amateur snooker champion.
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