Science Quiz- by www.ssbcoaching.com ( NDA- AFCAT Preparation Academy)
ssb - sainik- rimc- afcat- ta- acc entranace exam coaching academy 094437 20076 www.ssbcoaching.com Science Quiz 1. Which of the following is the lightest metal ? (A) Mercury (B) Silver (C) Lithium (D) Lead 2. The most important ore of Aluminium is — (A) Bauxite (B) Calamine (C) Calcite (D) Galena 3. The element present in the largest amount in rocks and minerals is — (A) Carbon (B) Silicon (C) Hydrogen (D) Aluminium 4. An alloy used in making heating elements for electric heating devices is — (A) Solder (B) Alloysteel (C) Nichrome (D) German Silver 5. German Silver is an alloy of — (A) Copper, Silver & Nickel (B) Silver, Copper & Aluminium (C) Zinc, Copper & Nickel (D) Silver, Zinc & Nickel 6. Air is a/an — (A) Compound (B) Element (C) Mixture (D) Electrolyte 7. Which of the following is the best conductor of Electricity ? (A) Ordinary water (B) Sea water (C) Boiled water (D) Distilled water 8. Balloons are filled with...