Solved 2017 Question Paper ICSE Class 10 Chemistry — Question 1
Back to all questionsFill in the blanks from the choices given in brackets:
(i) The energy required to remove an electron from a neutral isolated gaseous atom and convert it into a positively charged gaseous ion is called .............. (electron affinity, ionisation potential, electronegativity)
(ii) The compound that does not have a lone pair of electrons is .............. (water, ammonia, carbon tetra chloride)
(iii) When a metallic oxide is dissolved in water, the solution formed has a high concentration of .............. ions. (H+, H3O+, OH-)
(iv) Potassium sulphite on reacting with hydrochloric acid releases .............. gas. (Cl2, SO2, H2S)
(v) The compound formed when ethene reacts with Hydrogen is .............. (CH4, C2H6, C3H8)
(i) The energy required to remove an electron from a neutral isolated gaseous atom and convert it into a positively charged gaseous ion is called Ionization Potential
(ii) The compound that does not have a lone pair of electrons is carbon tetrachloride.
(iii) When a metallic oxide is dissolved in water, the solution formed has a high concentration of OH- ions.
(iv) Potassium sulphite on reacting with hydrochloric acid releases SO2 gas.
(v) The compound formed when ethene reacts with Hydrogen is C2H6.