GS One‑Liners
high‑yield facts · smart revision
5107
facts
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Latest facts first
| # | Question & Answer |
|---|---|
| 326 |
Which blood group has no antigens?
-
O
|
| 327 |
What is the smallest cell in the human body?
-
Sperm cell
|
| 328 |
Which vitamin is also known as Ascorbic acid?
-
Vitamin C
|
| 329 |
What is the site of photosynthesis in a plant cell?
-
Chloroplast
|
| 330 |
Which organ is known as the master gland?
-
Pituitary gland
|
| 331 |
Which gas is responsible for the depletion of the Ozone layer?
-
Chlorofluorocarbons (CFCs)
|
| 332 |
What is the pH value of Human saliva?
-
6.5–7.5
|
| 333 |
Which metal is liquid at room temperature besides Mercury?
-
Gallium (near room temperature)
|
| 334 |
What is the chemical formula of Phosphoric Acid?
-
H₃PO₄
|
| 335 |
Which process is used for the purification of drinking water?
-
Chlorination
|
| 336 |
What is the most abundant element in the Earth’s crust?
-
Oxygen
|
| 337 |
Which acid is present in Tea?
-
Tannic acid
|
| 338 |
What is the chemical name of Bleaching Powder?
-
Calcium Oxychloride
|
| 339 |
Which gas is known as Marsh Gas?
-
Methane
|
| 340 |
What is the chemical formula of Lime Water?
-
Ca(OH)₂
|
| 341 |
Which ray is used in the treatment of cancer?
-
Gamma rays
|
| 342 |
What is the value of 1 atmosphere pressure in Pascal?
-
1.013 × 10⁵ Pa
|
| 343 |
Which instrument is used to measure blood pressure?
-
Sphygmomanometer
|
| 344 |
What is the unit of Conductance?
-
Siemens
|
| 345 |
Who discovered the Neutron?
-
James Chadwick
|
| 346 |
What is the SI unit of Magnetic Permeability?
-
Henry per metre
|
| 347 |
Which lens is used in a simple microscope?
-
Convex lens
|
| 348 |
What is the refractive index of diamond?
-
2.42
|
| 349 |
Who invented the Radio?
-
Guglielmo Marconi
|
| 350 |
What is the SI unit of Surface Tension?
-
N/m
|