eCoaching | Your Virtual Mentor | Past Papers
Question Options
Which type of forces are dominant during chemical bond formation Repulsive forces, Attractive forces, Vander waal forces, Hydrogen bonding
Which type of covalent bond is present in Nitrogen molecule (N2) Single Covalent Bond, Double Covalent Bond, Triple Covalent Bond, Metallic Bond
After gaining one electron, chlorine atom attains the electronic configuration of which noble gas Helium, Neon, Argon, Krypton
Metals have generally High ionization value, Low ionization value, High electron affinity value, High electron negativity
Number of elements in normal period are 18, 10, 8, 32
Tyre puncture is an example of Effusion Process, Diffusion Process, Evaporation Process, Condensation Process
The removal of electron from an atom give rise to Cation, Anion, Molecular, Molecular Anion
The melting point value of sodium metal is 97 Celsius, 100 Celsius, 110 Celsius, 200 Celsius
The empirical formula of glucose is CH, CH2O, OH, H2O2
Pure water is an example of Weak electolyte, Strong electrolyte, Strong acid, Strong base
Metals alloy are Solution of solid in gas, Solution of solid in liquid, Solution of solid in solid, Solution of gas i
Which one of the following is a weak electrolyte NaCl, NaOH, H2SO4, CH3COOH
Addition of oxygen during chemical reaction is called Reduction, Oxidation, Evaporation, Conduction
Which one of the following is lightest element Lithium, Sodium, Magnesium, Calcium
Which one of the following is a liquid in solid solution Sugar in water, Butter, Alcohol in water, Fog
Industrial Chemical deals with the manufacturing of compounds In Laboratory, On Micro scale, On Commercial Scale, On Economic Scale
Number of elements in normal period are 18, 10, 8, 32
How many electrons are involved in triple covalent bond 6, 3, 4, 8
In charles law "K" is equal to T / V, T V, V / T, V / P
What is the formula of rust Fe2O3, F2(OH)3, Fe2O3nH2O, Fe(OH)3nH2O
The molar mass of H2SO4 is 9.8 grams, 98 grams, 98 amu, 9.8 amu
Which type of force is present in hydrogen bonding Inter molecular force, Ionic force, Covalent force, Metallic force
Which one of the following halogen has lowest electro negativity Chlorine, Iodine, Bromine, Flourine
Who discovered Cathode Rays Gold Stein, John Dalton, Sir Williams Crooks, Neil Bohr