Download RRB NTPC Chemistryt Questions and Answers PDF. Top 25 RRB NTPC General Science questions based on asked questions in previous exam papers very important for the Railway NTPC exam.<\/p>\n
Download RRB NTPC Chemistry Questions PDF<\/a><\/p> Take a free mock test for RRB NTPC<\/a><\/p>\n Download RRB NTPC Previous Papers PDF<\/a><\/p>\n Question 1:\u00a0<\/b>Which among the following are Dibasic Acids?<\/p>\n a)\u00a0Phosphoric Acid<\/p>\n b)\u00a0Nitric Acid<\/p>\n c)\u00a0Hydrochloric Acid<\/p>\n d)\u00a0Sulphuric Acid<\/p>\n Question 2:\u00a0<\/b>What is the pH value of Sodium Hydroxide?<\/p>\n a)\u00a012<\/p>\n b)\u00a011<\/p>\n c)\u00a014<\/p>\n d)\u00a07<\/p>\n Question 3:\u00a0<\/b>What is the chemical name of caustic potash?<\/p>\n a)\u00a0Potassium Hydroxide<\/p>\n b)\u00a0Manganese Hydroxide<\/p>\n c)\u00a0Ferrous Hydroxide<\/p>\n d)\u00a0Phosphorous Hydroxide<\/p>\n RRB NTPC Previous Papers [Download PDF]<\/a><\/p>\n FREE RRB NTPC YOUTUBE VIDEOS<\/a><\/p>\n Question 4:\u00a0<\/b>Which is the most electronegative element?<\/p>\n a)\u00a0Chlorine<\/p>\n b)\u00a0Fluorine<\/p>\n c)\u00a0Bromine<\/p>\n d)\u00a0Iodine<\/p>\n Question 5:\u00a0<\/b>What is the approximate carbon composition of kerosene?<\/p>\n a)\u00a0C31 – C32<\/p>\n b)\u00a0C8 – C10<\/p>\n c)\u00a0C11 – C16<\/p>\n d)\u00a0C20 – C25<\/p>\n Question 6:\u00a0<\/b>Where does the process of electrolysis occur during reduction?<\/p>\n a)\u00a0Cathode<\/p>\n b)\u00a0Anode<\/p>\n c)\u00a0Both<\/p>\n d)\u00a0None of these<\/p>\n RRB NTPC Free Mock Test<\/a><\/p>\n\n Question 7:\u00a0<\/b>What is philosopher’s wool?<\/p>\n a)\u00a0Zinc hydroxide<\/p>\n b)\u00a0Zinc oxide<\/p>\n c)\u00a0Zinc bromide<\/p>\n d)\u00a0None of these<\/p>\n Question 8:\u00a0<\/b>Who invented the phenomenon of radioactivity?<\/p>\n a)\u00a0Madam Curie<\/p>\n b)\u00a0Henery Bacqurel<\/p>\n c)\u00a0Henry Nicholas<\/p>\n d)\u00a0None of these<\/p>\n Question 9:\u00a0<\/b>NBR stands for?<\/p>\n a)\u00a0Nitrile Butyl Rubber<\/p>\n b)\u00a0AcryloNitrile-butadiene rubber<\/p>\n c)\u00a0Nitrile Butene Rubber<\/p>\n d)\u00a0None of these<\/p>\n Download General Science Notes PDF<\/a><\/p>\n\n Question 10:\u00a0<\/b>The composition of soap comprises of?<\/p>\n a) Sodium salt with fatty acids.<\/p>\n b)\u00a0Sodium and Potassium salt mixed with chemicals<\/p>\n c)\u00a0Potassium salt with fatty acids<\/p>\n d)\u00a0Both a & c<\/p>\n Question 11:\u00a0<\/b>What are singly bonded carbon atoms containing hydrocarbons called?<\/p>\n a)\u00a0Unsaturated Hydrocarbons<\/p>\n b)\u00a0Saturated Hydrocarbons<\/p>\n c)\u00a0Aromatic Hydrocarbons<\/p>\n d)\u00a0None of the above<\/p>\n Question 12:\u00a0<\/b>What is the octane number of iso-octane?<\/p>\n a)\u00a0100<\/p>\n b)\u00a0108<\/p>\n c)\u00a0104<\/p>\n d)\u00a0101<\/p>\n Daily Free RRB Online Tests for RRB Exams<\/a><\/p>\n RRB NTPC Free Mock Test<\/a><\/p>\n Question 13:\u00a0<\/b>Which gas is used in voyage as Holmes signal?<\/p>\n a)\u00a0Water gas<\/p>\n b)\u00a0Chlorine gas<\/p>\n c)\u00a0Syn gas<\/p>\n d)\u00a0Phosphine gas<\/p>\n Question 14:\u00a0<\/b>All ores are _____?<\/p>\n a)\u00a0Metals<\/p>\n b)\u00a0Non-metals<\/p>\n c)\u00a0Metalloids<\/p>\n d)\u00a0Minerals<\/p>\n <\/p>\n Question 15:\u00a0<\/b>Which among the following radius has largest size?<\/p>\n a)\u00a0Covalent radius<\/p>\n b)\u00a0Metallic radius<\/p>\n c)\u00a0Nonmetallic radius<\/p>\n d)\u00a0Vanderwall radius<\/p>\n Question 16:\u00a0<\/b>Which among the following is true?<\/p>\n a)\u00a0Thomson\u2019s model – Plum pudding model<\/p>\n b)\u00a0Bohr\u2019s model – Nuclear theory<\/p>\n c)\u00a0Rutherford\u2019s model – Quantization of energy<\/p>\n d)\u00a0All of the above<\/p>\n Question 17:\u00a0<\/b>Which among the following alloys are used in making electrical wire?<\/p>\n a)\u00a0Nickel Steel<\/p>\n b)\u00a0Brass<\/p>\n c)\u00a0Bronze<\/p>\n d)\u00a0Magnalium<\/p>\n Question 18:\u00a0<\/b>Which Group metals are called Alkali metals?<\/p>\n a)\u00a0Group I<\/p>\n b)\u00a0Group II<\/p>\n c)\u00a0Group III<\/p>\n d)\u00a0Group IV<\/p>\n Daily Free RRB Online Tests for RRB Exams<\/a><\/p>\n 100+ Free Online G.K Tests<\/a><\/p>\n Question 19:\u00a0<\/b>Which among the following chemical substances are used in the formation of Mustard gas ?<\/p>\n a)\u00a0Bromine<\/p>\n b)\u00a0Chlorine<\/p>\n c)\u00a0Sulphur<\/p>\n d)\u00a0Ammonia<\/p>\n Question 20:\u00a0<\/b>What are the examples of strong electrolytes?<\/p>\n a)\u00a0Acetic Acid<\/p>\n b)\u00a0Carbonic Acid<\/p>\n c)\u00a0Sodium Hydroxide<\/p>\n d)\u00a0All of the above<\/p>\n Question 21:\u00a0<\/b>What is the boiling point of ethanol?<\/p>\n a)\u00a0$78.3^\\circ C$<\/p>\n b)\u00a0$100^\\circ C$<\/p>\n c)\u00a0$62^\\circ C$<\/p>\n d)\u00a0$46^\\circ C$<\/p>\n Download General Science Notes PDF<\/a><\/p>\n Question 22:\u00a0<\/b>Which among the following elements are the constituents of stainless steel?<\/p>\n a)\u00a0Iron<\/p>\n b)\u00a0Copper<\/p>\n c)\u00a0Zinc<\/p>\n d)\u00a0Lead<\/p>\n Question 23:\u00a0<\/b>What is the geometrical structure for a)\u00a0Linear<\/p>\n b)\u00a0Trigonal<\/p>\n c)\u00a0Tetrahedral<\/p>\n d)\u00a0Octahedral<\/p>\n Question 24:\u00a0<\/b>What is the Oxidation Number of Alkali metals like Sodium, Potassium, Lithium etc?<\/p>\n a)\u00a0+2<\/p>\n b)\u00a0+1<\/p>\n c)\u00a0-1<\/p>\n d)\u00a0-2<\/p>\n Question 25:\u00a0<\/b>Which among the following is \u201clightest element\u201d?<\/p>\n a)\u00a0Lithium<\/p>\n b)\u00a0Osmium<\/p>\n c)\u00a0Cesium<\/p>\n d)\u00a0Silver<\/p>\n
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\n$SP^3$ hybridisation?<\/p>\n