1. Which among the following is used in making liquors, medicines and as a fuel in aircrafts? (A) Propyl alcohol (B) Dimethyl

133. Which of the following elements has the lowest melting point? (A) Titanium (B) Tungsten (C) Argon (D) Nickel Ans. (C) 134.

87. Standard 18 carat Gold sold in the Market is – (A) 82 parts of gold and 18 parts of Metal (B)

55. Oxygen is a– (A) Reducing agent (B) Combustion nourishing (C) Constituent of all gas (D) Inflammable gas Ans. (B) 56. Carbon

1. Identify the metal which is Non-toxic in nature– (A) Gold (B) Cadmium (C) Cobalt (D) Chromium Ans. (A) 2. Main constituent

42. Which one of the following Metals is used to Heat up the electric iron? (A) Copper (B) Tungsten (C) Nichrome (D)

1. Major portion of the earth’s crust is mainly constituted by (A) Oxygen and Iron (B) Oxygen and Silicon (C) Silicon and

1. Who proposed the Modern Periodic Table? (A) Faraday (B) Mendeleev (C) Newton (D) Bohr Ans. (B) 2. Total number of Inner

1. Formation of cation occurs by– (A) Gain of electron (B) Loss of electron (C) Gain of proton (D) Loss of proton

77. What is the common name of Calcium Hypochlorite? (A) Water (B) Bleaching powder (C) Baking soda (D) Baking powder Ans. (B)