Download RRB JE Chemistry Questions and Answers PDF. Top 50 RRB JE Chemistry questions based on asked questions in previous exam papers very important for the Railway JE exam.<\/p>\n
Download RRB JE Chemistry Questions PDF<\/a><\/p>\n 10 RRB JE Mocks – Just Rs. 117<\/a><\/p>\n RRB JE Previous Papers [Download PDF]<\/a><\/p>\n Download RRB JE General Science Notes PDF<\/a><\/p>\n Question 1:\u00a0<\/b>What is the common characteristic of the elements of the same group in the periodic table?<\/p>\n a)\u00a0Electrons in outer most shell<\/p>\n b)\u00a0Total number of electrons<\/p>\n c)\u00a0Total number of protons<\/p>\n d)\u00a0Atomic weight<\/p>\n Question 2:\u00a0<\/b>What happens when one S and one P orbital is hybridized?<\/p>\n a)\u00a0We get three orbitals in a plane<\/p>\n b)\u00a0We get two orbitals at 180 degrees<\/p>\n c)\u00a0We get two mutually perpendicular orbitals<\/p>\n d)\u00a0We get four orbitals directed tetrahedrally<\/p>\n Question 3:\u00a0<\/b>Atomic bomb is based on which principle?<\/p>\n a)\u00a0Nuclear fusion<\/p>\n b)\u00a0Nuclear fission<\/p>\n c)\u00a0Natural radioactivity<\/p>\n d)\u00a0All options are correct<\/p>\n Question 4:\u00a0<\/b>Which among the following occurs in the process of oxidation?<\/p>\n a)\u00a0Addition of oxygen<\/p>\n b)\u00a0Removal of hydrogen<\/p>\n c)\u00a0Addition of electro negative element<\/p>\n d)\u00a0All of the above<\/p>\n FREE RRB JE YOUTUBE VIDEOS<\/a><\/p>\n RRB NTPC Free Mock Test<\/a><\/p>\n Question 5:\u00a0<\/b>What does a catalyst do in a reaction?<\/p>\n a)\u00a0A catalyst is nothing but the \ufb01nal product of a reaction<\/p>\n b)\u00a0Does not alter the rate of reaction<\/p>\n c)\u00a0Speeds up chemical reaction<\/p>\n d)\u00a0Slows down chemical reaction<\/p>\n Question 6:\u00a0<\/b>Why metals conduct electricity?<\/p>\n a)\u00a0Because of low melting point<\/p>\n b)\u00a0Because of high tensile strength<\/p>\n c)\u00a0Because of free electrons<\/p>\n d)\u00a0Because of high atomic density<\/p>\n Question 7:\u00a0<\/b>The desirable range of pH for milk is?<\/p>\n a)\u00a06.6<\/p>\n b)\u00a04.1<\/p>\n c)\u00a07.8<\/p>\n d)\u00a02.4<\/p>\n Question 8:\u00a0<\/b>The (O-H) bond in C<\/span>H<\/span>3<\/span><\/span><\/span><\/span><\/span>OH is which type of bond?<\/p>\n a)\u00a0polar covalent<\/p>\n b)\u00a0ionic<\/p>\n c)\u00a0non polar covalent<\/p>\n d)\u00a0cationic<\/p>\n RRB NTPC Previous Papers Download PDF<\/a><\/p>\n Question 9:\u00a0<\/b>Adding which substance gives blue colour to glass?<\/p>\n a)\u00a0Manganese oxide<\/p>\n b)\u00a0Cobalt oxide<\/p>\n c)\u00a0Chromium oxide<\/p>\n d)\u00a0Iron oxide<\/p>\n Question 10:\u00a0<\/b>Terylene is a condensation polymer of ethylene glycol and which acid?<\/p>\n a)\u00a0Benzoic Acid<\/p>\n b)\u00a0Salicylic acid<\/p>\n c)\u00a0Phthalic acid<\/p>\n d)\u00a0Terephthalic acid<\/p>\n Question 11:\u00a0<\/b>The conversion of hard water into soft water by boiling or adding calcium hydroxide is called _______.<\/p>\n a)\u00a0Baker’s process<\/p>\n b)\u00a0Temp’s process<\/p>\n c)\u00a0Clarke’s process<\/p>\n d)\u00a0Lake’s process<\/p>\n Question 12:\u00a0<\/b>How is the iron container or vessel galvanized ?<\/p>\n a)\u00a0Chromium<\/p>\n b)\u00a0Nickel<\/p>\n c)\u00a0Aluminium<\/p>\n d)\u00a0Zinc<\/p>\n 18000+ Questions – Free SSC Study Material<\/a><\/p>\n Question 13:\u00a0<\/b>Biofertilizers convert nitrogen to _________ .<\/p>\n a)\u00a0nitrates<\/p>\n b)\u00a0ammonia<\/p>\n c)\u00a0nitrogenase<\/p>\n d)\u00a0amino acids<\/p>\n Question 14:\u00a0<\/b>Which drug is used as an Anti-In\ufb02ammatory?<\/p>\n a)\u00a0Metformin<\/p>\n b)\u00a0Diazepam<\/p>\n c)\u00a0Latanoprost<\/p>\n d)\u00a0Prednisone<\/p>\n\n Question 15:\u00a0<\/b>Who invented the atomic theory?<\/p>\n a)\u00a0Albert Einstein<\/p>\n b)\u00a0John Dalton<\/p>\n c)\u00a0Madam curie<\/p>\n d)\u00a0None of these<\/p>\n Question 16:\u00a0<\/b>The radio-active element used in heart pacemakers is?<\/p>\n a)\u00a0Plutonium -238<\/p>\n b)\u00a0Deuterium<\/p>\n c)\u00a0Plutonium<\/p>\n d)\u00a0Radium<\/p>\n Question 17:\u00a0<\/b>Acid rain is caused due to pollution of atmosphere by<\/p>\n a)\u00a0oxides of nitrogen and sulphur<\/p>\n b)\u00a0oxides of nitrogen and phosphorous<\/p>\n c)\u00a0oxides of carbon and nitrogen<\/p>\n d)\u00a0oxides of nitrogen and methane<\/p>\n RRB NTPC Free Mock Test<\/a><\/p>\n RRB JE Free Mock Test<\/a><\/p>\n Question 18:\u00a0<\/b>The common name of hydrogen peroxide is<\/p>\n a)\u00a0borax<\/p>\n b)\u00a0bleach (liquid)<\/p>\n c)\u00a0baking soda<\/p>\n d)\u00a0gypsum<\/p>\n Question 19:\u00a0<\/b>Which element gives hardness to stainless steel?<\/p>\n a)\u00a0Zinc<\/p>\n b)\u00a0Lead<\/p>\n c)\u00a0Carbon<\/p>\n d)\u00a0Tin<\/p>\n Question 20:\u00a0<\/b>The density of gold is ___ the density of mercury?<\/p>\n a)\u00a0Higher than<\/p>\n b)\u00a0Lower than<\/p>\n c)\u00a0Equal to<\/p>\n d)\u00a0Incomparable to<\/p>\n Question 21:\u00a0<\/b>What is the name of the acid in an ant’s sting?<\/p>\n a)\u00a0Acetic acid<\/p>\n b)\u00a0Citric acid<\/p>\n c)\u00a0Formic acid<\/p>\n d)\u00a0Lactic acid<\/p>\n Question 22:\u00a0<\/b>__________ is the movement of chemical in the upper layers of soil into lower layers or into groundwater by being dissolved in water.<\/p>\n a)\u00a0infiltration<\/p>\n b)\u00a0salinisation<\/p>\n c)\u00a0eutrophication<\/p>\n d)\u00a0leaching<\/p>\n Question 23:\u00a0<\/b>______ is used for making chemical apparatus like beakers, flasks etc.<\/p>\n a)\u00a0Potash glass<\/p>\n b)\u00a0Hard glass<\/p>\n c)\u00a0Soda glass<\/p>\n d)\u00a0Jena glass<\/p>\n Daily Free Online Tests for RRB Exams<\/a><\/p>\n Question 24:\u00a0<\/b>The process of depositing a layer of any desired metal on another material by means of electricity is called ___________.<\/p>\n a)\u00a0Electroplating<\/p>\n b)\u00a0Galvanisation<\/p>\n c)\u00a0Rusting<\/p>\n d)\u00a0Crystallisation<\/p>\n Question 25:\u00a0<\/b>Which among the following acids is found in rain water?<\/p>\n a)\u00a0Nitric acid<\/p>\n b)\u00a0Sulphuric acid<\/p>\n c)\u00a0Hydrochloric acid<\/p>\n d)\u00a0Boric acid<\/p>\n Question 26:\u00a0<\/b>Which base is present in soap?<\/p>\n a)\u00a0Sodium hydroxide<\/p>\n b)\u00a0Silicon dioxide<\/p>\n c)\u00a0Calcium hydroxide<\/p>\n d)\u00a0Ammonium hydroxide<\/p>\n Question 27:\u00a0<\/b>Which gas is produced due to incomplete combustion of fuel?<\/p>\n a)\u00a0Carbon Dioxide<\/p>\n b)\u00a0Carbon Monoxide<\/p>\n c)\u00a0Methane<\/p>\n d)\u00a0Ethane<\/p>\n Question 28:\u00a0<\/b>Magnesium oxide (MgO) + Water (H2O) = ?<\/p>\n a)\u00a0[Mg(OH)]<\/p>\n b)\u00a0[Mg2(OH)]<\/p>\n c)\u00a0[Mg(O2H)2]<\/p>\n d)\u00a0[Mg(OH)2]<\/p>\n Download RRB GK Material PDF<\/a><\/p>\n Question 29:\u00a0<\/b>Anions are formed through which process?<\/p>\n a)\u00a0losing of electrons<\/p>\n b)\u00a0gaining of electrons<\/p>\n c)\u00a0gaining of neutrons<\/p>\n d)\u00a0losing of neutrons<\/p>\n Question 30:\u00a0<\/b>The anode in a dry cell consists of?<\/p>\n a)\u00a0Copper<\/p>\n b)\u00a0Zinc<\/p>\n c)\u00a0Cadmium<\/p>\n d)\u00a0Graphite<\/p>\n\n Question 31:\u00a0<\/b>If water smells bad, then that odour can be removed by adding<\/p>\n a)\u00a0alum<\/p>\n b)\u00a0bleach<\/p>\n c)\u00a0activated carbon<\/p>\n d)\u00a0deactivated nitrogen<\/p>\n Question 32:\u00a0<\/b>Which compound\u2019s structure is held by weak Vanderwaal\u2019s force?<\/p>\n a)\u00a0Diamond<\/p>\n b)\u00a0Gold<\/p>\n c)\u00a0Graphite<\/p>\n d)\u00a0Magnesium<\/p>\n\n Question 33:\u00a0<\/b>What is the chemical name for baking soda ?<\/p>\n a)\u00a0Sodium carbonate<\/p>\n b)\u00a0Sodium bicarbonate<\/p>\n c)\u00a0Sodium Nitrate<\/p>\n d)\u00a0Sodium Nitrite<\/p>\n Question 34:\u00a0<\/b>NaCl has which kind of bonds?<\/p>\n a)\u00a0nonpolar bonds<\/p>\n b)\u00a0polar covalent bonds<\/p>\n c)\u00a0Metallic bonds<\/p>\n d)\u00a0ionic bonds<\/p>\n Question 35:\u00a0<\/b>Which chemical is used to generate light, to weld metals?<\/p>\n a)\u00a0Ethylene<\/p>\n b)\u00a0Acetylene<\/p>\n c)\u00a0Glycol<\/p>\n d)\u00a0Oxalic acid<\/p>\n Question 36:\u00a0<\/b>Which man-made polymer is used to make bottle?<\/p>\n a)\u00a0Polypropene<\/p>\n b)\u00a0Polythene<\/p>\n c)\u00a0Teflon<\/p>\n d)\u00a0Nylon<\/p>\n Question 37:\u00a0<\/b>Turquoise is an ore\/mineral of<\/p>\n a)\u00a0Copper<\/p>\n b)\u00a0Manganese<\/p>\n c)\u00a0Mercury<\/p>\n d)\u00a0Tin<\/p>\n Question 38:\u00a0<\/b>Process of gaining electrons is known as _____.<\/p>\n a)\u00a0oxidation<\/p>\n b)\u00a0reduction<\/p>\n c)\u00a0radiation<\/p>\n d)\u00a0both oxidation and reduction<\/p>\n Question 39:\u00a0<\/b>What does Trypsin do?<\/p>\n a)\u00a0Breaks down Carbohydrates<\/p>\n b)\u00a0Synthesizes proteins<\/p>\n c)\u00a0Breaks down fats<\/p>\n d)\u00a0Breaks down proteins<\/p>\n Question 40:\u00a0<\/b>During which operating conditions of an automobile, carbon monoxide content in exhaust gas is maximum?<\/p>\n a)\u00a0Acceleration<\/p>\n b)\u00a0Cruising<\/p>\n c)\u00a0Idle running<\/p>\n d)\u00a0Deacceleration<\/p>\n\n Question 41:\u00a0<\/b>What is the viscosity of an ideal \ufb02uid?<\/p>\n a)\u00a0Equal to its mass<\/p>\n b)\u00a0Equal to its weight<\/p>\n c)\u00a0Zero<\/p>\n d)\u00a0One<\/p>\n Question 42:\u00a0<\/b>The most abundant metal in the Earth’s crust is<\/p>\n a)\u00a0zinc<\/p>\n b)\u00a0copper<\/p>\n c)\u00a0aluminium<\/p>\n d)\u00a0iron<\/p>\n Question 43:\u00a0<\/b>Name the source from which Aspirin is produced?<\/p>\n a)\u00a0Willow bark<\/p>\n b)\u00a0Oak Tree<\/p>\n c)\u00a0Acacia<\/p>\n d)\u00a0Eucalyptus<\/p>\n Question 44:\u00a0<\/b>Which substance is used in purifying closed air in hospital?<\/p>\n a)\u00a0Strontium<\/p>\n b)\u00a0Cadmium<\/p>\n c)\u00a0Sodium Peroxide<\/p>\n d)\u00a0Zinc Oxide<\/p>\n Question 45:\u00a0<\/b>In a compound the elements are always present in definite proportions by<\/p>\n a)\u00a0mass<\/p>\n b)\u00a0volume<\/p>\n c)\u00a0size<\/p>\n d)\u00a0No option is correct.<\/p>\n\n Question 46:\u00a0<\/b>What is nature of pH of Milk?<\/p>\n a)\u00a0Slightly Acidic<\/p>\n b)\u00a0Slightly Basic<\/p>\n c)\u00a0Highly Acidic<\/p>\n d)\u00a0Highly Basic<\/p>\n Question 47:\u00a0<\/b>Which is the best fire-extinguisher?<\/p>\n a)\u00a0Water<\/p>\n b)\u00a0Oxygen<\/p>\n c)\u00a0Carbon-dioxide<\/p>\n d)\u00a0Soil<\/p>\n Question 48:\u00a0<\/b>Marble is a metamorphic rock of ………….<\/p>\n a)\u00a0Sandstone<\/p>\n b)\u00a0Limestone<\/p>\n c)\u00a0Granite<\/p>\n d)\u00a0Clay<\/p>\n Question 49:\u00a0<\/b>Which chemical is also known as Carbolic Acid?<\/p>\n a)\u00a0Phenol<\/p>\n b)\u00a0Hydroxide<\/p>\n c)\u00a0Sulphuric Acid<\/p>\n d)\u00a0Ethanol<\/p>\n Question 50:\u00a0<\/b>What is the hybridization of carbon in graphite?<\/p>\n a)\u00a0SP<\/p>\n b)\u00a0$SP^2$<\/p>\n c)\u00a0$SP^3$<\/p>\n d)\u00a0$SP^4$<\/p>\n General Science Notes for RRB Exams (PDF)<\/a><\/p>\n Answers & Solutions:<\/strong><\/span><\/p>\n 1)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 2)\u00a0Answer\u00a0(B)<\/strong><\/p>\n 3)\u00a0Answer\u00a0(B)<\/strong><\/p>\n Nuclear fission<\/p>\n 4)\u00a0Answer\u00a0(D)<\/strong><\/p>\n 5)\u00a0Answer\u00a0(C)<\/strong><\/p>\n 6)\u00a0Answer\u00a0(C)<\/strong><\/p>\n 7)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 8)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 9)\u00a0Answer\u00a0(B)<\/strong><\/p>\n 10)\u00a0Answer\u00a0(D)<\/strong><\/p>\n\n 11)\u00a0Answer\u00a0(C)<\/strong><\/p>\n 12)\u00a0Answer\u00a0(D)<\/strong><\/p>\n Galvanization or galvanizing is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which the parts are submerged in a bath of molten zinc.<\/p>\n 13)\u00a0Answer\u00a0(B)<\/strong><\/p>\n 14)\u00a0Answer\u00a0(D)<\/strong><\/p>\n 15)\u00a0Answer\u00a0(B)<\/strong><\/p>\n John Dalton, a British chemist and physicist, developed a theory that matter is simply composed of atoms of different weights and is combined in ratios by weight.<\/p>\n 16)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 17)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 18)\u00a0Answer\u00a0(B)<\/strong><\/p>\n 19)\u00a0Answer\u00a0(C)<\/strong><\/p>\n 20)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 21)\u00a0Answer\u00a0(C)<\/strong><\/p>\n 22)\u00a0Answer\u00a0(D)<\/strong><\/p>\n\n 23)\u00a0Answer\u00a0(B)<\/strong><\/p>\n Hard Glass <\/span><\/strong>is used for making chemical apparatus like beakers, flasks etc.<\/p>\n => Ans – (B)<\/p>\n 24)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 25)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 26)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 27)\u00a0Answer\u00a0(B)<\/strong><\/p>\n 28)\u00a0Answer\u00a0(D)<\/strong><\/p>\n 29)\u00a0Answer\u00a0(B)<\/strong><\/p>\n 30)\u00a0Answer\u00a0(B)<\/strong><\/p>\n 31)\u00a0Answer\u00a0(C)<\/strong><\/p>\n 32)\u00a0Answer\u00a0(C)<\/strong><\/p>\n 33)\u00a0Answer\u00a0(B)<\/strong><\/p>\n 34)\u00a0Answer\u00a0(D)<\/strong><\/p>\n 35)\u00a0Answer\u00a0(B)<\/strong><\/p>\n 36)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 37)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 38)\u00a0Answer\u00a0(B)<\/strong><\/p>\n 39)\u00a0Answer\u00a0(D)<\/strong><\/p>\n 40)\u00a0Answer\u00a0(C)<\/strong><\/p>\n 41)\u00a0Answer\u00a0(C)<\/strong><\/p>\n\n 42)\u00a0Answer\u00a0(C)<\/strong><\/p>\n 43)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 44)\u00a0Answer\u00a0(C)<\/strong><\/p>\n 45)\u00a0Answer\u00a0(A)<\/strong><\/p>\n\n 46)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 47)\u00a0Answer\u00a0(C)<\/strong><\/p>\n 48)\u00a0Answer\u00a0(B)<\/strong><\/p>\n 49)\u00a0Answer\u00a0(A)<\/strong><\/p>\n 50)\u00a0Answer\u00a0(B)<\/strong><\/p>\n