Organic chemistry November 24, 2021 Uncategorized 1. Which among the following is used in making liquors, medicines and as a fuel in aircrafts? (A) Propyl alcohol (B) Dimethyl
Metals, Non-metals & Semimetals-4 November 24, 2021 Uncategorized 133. Which of the following elements has the lowest melting point? (A) Titanium (B) Tungsten (C) Argon (D) Nickel Ans. (C) 134.
Metals, Non-metals & Semimetals-3 November 24, 2021 Uncategorized 87. Standard 18 carat Gold sold in the Market is – (A) 82 parts of gold and 18 parts of Metal (B)
Metals, Non-metals & Semimetals-2 November 24, 2021 Uncategorized 55. Oxygen is a– (A) Reducing agent (B) Combustion nourishing (C) Constituent of all gas (D) Inflammable gas Ans. (B) 56. Carbon
Metals, Non-metals & Semimetals-1 November 24, 2021 Uncategorized 1. Identify the metal which is Non-toxic in nature– (A) Gold (B) Cadmium (C) Cobalt (D) Chromium Ans. (A) 2. Main constituent
Metallurgy-2 November 24, 2021 Uncategorized 42. Which one of the following Metals is used to Heat up the electric iron? (A) Copper (B) Tungsten (C) Nichrome (D)
Metallurgy-1 November 24, 2021 Uncategorized 1. Major portion of the earth’s crust is mainly constituted by (A) Oxygen and Iron (B) Oxygen and Silicon (C) Silicon and
Periodic table November 24, 2021 Uncategorized 1. Who proposed the Modern Periodic Table? (A) Faraday (B) Mendeleev (C) Newton (D) Bohr Ans. (B) 2. Total number of Inner
Chemical Bonding November 24, 2021 Uncategorized 1. Formation of cation occurs by– (A) Gain of electron (B) Loss of electron (C) Gain of proton (D) Loss of proton
Acid, Base & Salt-3 November 24, 2021 Uncategorized 77. What is the common name of Calcium Hypochlorite? (A) Water (B) Bleaching powder (C) Baking soda (D) Baking powder Ans. (B)