PPSC PAST PAPERS EVERYDAY SCIENCE MCQS 2026
پیپر میں جانے سے
پہلے یہ سوالات و سلیبس ایک بار ضرور پڑھ کر جائیں
PPSC 25
years Past Papers Click here
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
آکسیجن زیادہ تر عناصر کے ساتھ عمل کرکے دو عنصری مرکبات بناتی ہے جنہیں کیا کہتے ہیں؟
- Bases
- Oxides
- Acids
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Oxygen reacts with most elements to produce binary compounds called oxides.
- An oxide is a compound formed when oxygen combines with another element.
- Oxides may be metallic or non-metallic depending on the element involved.
- Examples include CO₂ (carbon dioxide), MgO (magnesium oxide), and Fe₂O₃ (iron oxide).
- Oxides can have acidic, basic, or amphoteric properties.
Last verified on 12-08-2026
پانی اور کاربن ڈائی آکسائڈ کے سالمے مل کر کیا بناتے ہیں؟
- Nitric acid
- Carbonic acid
- Sulfuric acid
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Water (H₂O) and carbon dioxide (CO₂) combine to form carbonic acid (H₂CO₃).
- The reaction is: CO₂ + H₂O ⇌ H₂CO₃.
- Carbonic acid is a weak acid.
- It forms naturally when CO₂ dissolves in water.
- Carbonic acid contributes to the slightly acidic nature of rainwater.
Last verified on 11-08-2026
آواز کی پچ کس چیز پر ہوتی ہے؟
- Beats
- Frequency
- Amplitude
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- The pitch of a sound wave depends on its frequency.
- Pitch tells us whether a sound is high or low.
- Higher frequency → higher pitch (e.g., whistle).
- Lower frequency → lower pitch (e.g., bass drum).
- Frequency is measured in Hertz (Hz).
Last verified on 11-08-2026
قانونِ کششِ ثقلِ عام کس نے پیش کیا؟
- Newton
- Dalton
- Einstein
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- The law of universal gravitation was proposed by Isaac Newton.
- He introduced it in 1687 in his famous book Principia.
- It explains that every object attracts every other object.
- The force depends on mass and distance.
Last verified on 27-04-2026
ممپس اور خسرہ سے بچاؤ کے لیے استعمال کیا جاتا ہے؟
- Painkillers
- Antibiotics
- Vaccination
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Mumps and measles are prevented mainly through vaccination.
- Both mumps and measles are viral diseases.
- The MMR vaccine protects against Measles, Mumps, and Rubella.
Last verified on 11-08-2026
ہیضہ کی بیماری کس کی وجہ سے ہوتی ہے؟
- Air
- Water
- Soil
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Main transmission: Contaminated water and food.
- Disease: Cholera.
- Causative organism: Vibrio cholerae.
- Major symptom: Severe watery diarrhea.
- Prevention: Safe water, sanitation, and good hygiene.
Last verified on 11-08-2026
اوزون فضا کی کس تہہ میں موجود ہے؟
- Biosphere
- Thermosphere
- Troposphere
- Stratosphere
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Ozone (O₃) is mainly found in the Stratosphere, called the ozone layer.
- It absorbs harmful ultraviolet (UV) radiation from the sun, protecting life on Earth.
- Located roughly 15–35 km above the Earth’s surface.
Last verified on 17-01-2026
کرومیٹوگرافی کس مقصد کے لیے استعمال ہوتی ہے؟
- Examining whether there is poison in the blood of a deceased person
- Testing whether a person has a disease
- Identifying poisons
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- In forensic science, Chromatography is commonly used for identifying poisons, drugs, and other chemicals.
- It is a laboratory technique used to separate, identify, and analyze different substances in a mixture.
- It can help detect toxic substances in blood, urine, and other biological samples.
Last verified on 09-08-2026
آپتھلمولوجی کس کے مطالعے سے متعلق ہے؟
- Nerves
- Blood
- Eyes
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Ophthalmology is the study and medical specialty concerned with the eyes and vision.
- It deals with the structure, function, diseases, and treatment of the eyes.
- A doctor specializing in this field is called an ophthalmologist.
- Common eye conditions include cataracts, glaucoma, and refractive errors.
Last verified on 08-08-2026
کاربن مونو آکسائیڈ کس کے ساتھ جڑتی ہے؟
- Magnalium
- Hemoglobin
- Iron
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Carbon monoxide (CO) binds strongly with hemoglobin in the blood.
- It forms carboxyhemoglobin (COHb), reducing the blood's oxygen-carrying capacity.
- CO binds to hemoglobin about 200–250 times more strongly than oxygen.
- This can lead to oxygen deficiency (hypoxia) in body tissues.
- Carbon monoxide is a colorless, odorless, and poisonous gas.
Last verified on 04-08-2026
