Daily GK Challenge

More practice: Science & Technology GK

5 more SSC CGL questions from the same chapter, with step-by-step solutions. Try each one, then reveal the answer.

1. Q1easy

   The unit of electrical resistance is the:

   • AAmpere
   • BOhm
   • CVolt
   • DWatt
   Show answer & solution

   Correct answer: (B) Ohm

   Resistance is measured in Ohms (Ω), named after Georg Simon Ohm.

2. Q2easy

   Which planet is known as the 'Red Planet'?

   • AJupiter
   • BMars
   • CVenus
   • DSaturn
   Show answer & solution

   Correct answer: (B) Mars

   Mars appears red due to iron oxide (rust) on its surface.

3. Q3easy

   DNA stands for:

   • ADeoxyribonucleic Acid
   • BDiribose Nucleic Acid
   • CDeoxyribonitric Acid
   • DDiabosenucleic Acid
   Show answer & solution

   Correct answer: (A) Deoxyribonucleic Acid

   DNA = Deoxyribonucleic Acid, the molecule carrying genetic instructions.

4. Q4easy

   Which gas is used in fire extinguishers?

   • AOxygen
   • BCarbon dioxide
   • CNitrogen
   • DHydrogen
   Show answer & solution

   Correct answer: (B) Carbon dioxide

   Carbon dioxide (CO₂) is commonly used in fire extinguishers — it displaces oxygen and smothers the fire.

5. Q5easy

   The chemical symbol for Gold is:

   • AGo
   • BAu
   • CAg
   • DGd
   Show answer & solution

   Correct answer: (B) Au

   Gold's chemical symbol is Au, from the Latin word 'Aurum'.