GS One‑Liners

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# Question & Answer
76
Which blood group is most common in India? - B Positive
77
What is the smallest artery in the human body? - Arteriole
78
Which vitamin is also known as Pantothenic Acid? - Vitamin B5
79
What is the site of DNA replication in a cell? - Nucleus
80
Which organ is known as the filter of the body? - Kidney
81
Which gas is used in the Contact process for Sulphuric Acid? - Sulphur dioxide
82
What is the pH value of Human sweat? - 4.5–7.0
83
Which metal is used in the making of bells? - Bronze (Copper + Tin)
84
What is the chemical formula of Formic Acid? - HCOOH
85
Which process is used for the manufacture of Sodium Carbonate? - Solvay process
86
What is the least reactive metal? - Gold or Platinum
87
Which acid is present in Rhubarb? - Oxalic acid
88
What is the chemical name of Borax? - Sodium Tetraborate
89
Which gas is known as Water Gas? - CO + H₂
90
What is the chemical formula of Ammonium Chloride? - NH₄Cl
91
Which colour of light is scattered the most by the atmosphere? - Blue
92
What is the value of 1 electron volt in Joules? - 1.6 × 10⁻¹⁹ J
93
Which instrument is used to measure the focal length of a lens? - Optical bench
94
What is the unit of Electric Current Density? - Ampere per square metre
95
Who discovered Alpha, Beta and Gamma rays? - Ernest Rutherford
96
What is the SI unit of Electric Potential Difference? - Volt
97
Which mirror is used in searchlights? - Concave mirror
98
What is the speed of sound in steel? - Approximately 5100 m/s
99
Who invented the Transformer? - Michael Faraday
100
What is the SI unit of Impulse? - Newton second