Question

Fill in the blanks:

(i) When carbon dioxide is passed through lime water, lime water turns ________________ . (ii) When sodium bicarbonate reacts with acetic acid, _______ , water and CO2 are formed

(iii) A mixture of 5% CO2 and 95% oxygen is known as _____________. (iv) ___________ is used to purify nickel. (v) When CO2 is passed over red hot charcoal, ___________ is produced. (vi) The allotropic forms of oxygen are __________ and ____________. (vii) A clear liquid formed during destructive distillation of wood is called _______. (viii) ________ is a slow chemical process of the conversion of trees into coal. (ix) ____________ is the first stage of coal formation.​

Answer 1

Fill in the blanks:

(i) When carbon dioxide is passed through lime water, lime water turns milky . (ii) When sodium bicarbonate reacts with acetic acid, sodium acetate. ,water and CO2 are formed

(iii) A mixture of 5% CO2 and 95% oxygen is known Meduna's mixture . (iv) mond process is used to purify nickel. (v) When CO2 is passed over red hot charcoal, heat and light produced. (vi) The allotropic forms of oxygen are dioxygen and triplets oxygen. (vii) A clear liquid formed during destructive distillation of wood is called charcoal (viii) carbonisation is a slow chemical process of the conversion of trees into coal. (ix) peat is the first stage of coal formation.