- A solution of a substance 'X' is used for whitewashing.(i) Name the substance 'X' and write its formula.(ii) Write the reaction of the substance 'X' named in (i) with water.
- A solution of a substance ‘X’ is used for white washing
- Substance X used for whitewashing Ncert class 10 science
- A solution of a substance ' X ' is used for whitewashing. (i) Name the su..
A solution of a substance 'X' is used for whitewashing.(i) Name the substance 'X' and write its formula.(ii) Write the reaction of the substance 'X' named in (i) with water.
an organic liquid (A), containing C,H and O with boiling point 7 8 ∘C and possessing a rather pleasant odour or heating with concenterated H 2 S O 4 gives a gaseous product (B) with the empirical formula C H 2 . B decolourises bromine water as well as alkaline K M n O 4 solution and takes up one mole of H 2 (per mole of B) in the presence of finely divided nickle at high temperature. A and B are:
A solution of a substance ‘X’ is used for white washing
A solution of a substance ‘X’ is used for white washing. (i) Name the substance ‘X’ and write its formula. (ii) Write the reaction of the substance ‘X’ named in (i) above with water. Answer (i) We know that slaked lime (Ca(OH) 2 ) is used for whitewashing . The solution of slaked lime (Ca(OH) 2 ) is formed by reaction of Quicklime (CaO) and Water (H 2 O). Hence, the substance ‘X’ is Calcium Oxide / Quicklime and its formula is CaO . (ii) The reaction of ‘X’ with water is given as CaO(s) + H 2 O(l) → Ca(OH) 2 (aq)
Substance X used for whitewashing Ncert class 10 science
A typical lime whitewash. A solution of a substance ‘X’ is used for whitewashing. • Name the substance “X’ and write its formula. • Write the reaction of the substance ‘X’ named above with water. Answer: • Substance X in the question is Calcium oxide or “Quick lime”. • Calcium oxide (AKA slaked lime) reacts with water and forms calcium hydroxide and releases energy as heat. Application: When we apply slaked lime to walls of building as a thin layer. Within 2 to 3 days, it reacts to atmospheric carbon dioxide to form calcium carbonate. Calcium carbonate is hard and shiny, so it protects the wall from harsh weather and also looks appealing. Ca(OH 2) aq. + CO 2(g) ————> CaCO 3 + H 2O(l) Next: See also:
A solution of a substance ' X ' is used for whitewashing. (i) Name the su..
(1) The substance X is calcium oxide whose solution is used in white washing CaO is also known as quick line. Hence, has a chemical formula CaO. (2) The reaction of quick lime ( CaO ) with water is written as shown below: CaO ( s ) + H 2 O ( ℓ ) ⟶ Ca ( OH ) 2 ( aq ) Quick lime slaked lime (calcium oxide) (calcium hydroxide) White washing in done with an aqueous suspension of calcium hydroxide (slaked lime). Views: 5,234 9.1 would represent the situation if a single individual reproduces, as happens in asexual reproduction. If one bacterium divides, and then the Greation of diversity over succeeding resultant two bacteria divide again, the four individual bacteria generated would be very similar. There would will gitere rise tha, say, two inditicluals, similar be only very minor differences between them, generated En bodildestion, but with subite differences. due to small inaccuracies in DNA copying. However, if the four inditiduals in the hotiom rowe each of will be generated, as we will see when we discuss the cilferer ffrom ecich other. While some of these rules of inheritance. differerices will be tinique, others will be Do all these variations in a species have equal titherifed from their respectioe parents, who chances of surviving in the environment in which they were different from each other. If themselves? Obviously not. Depending on the nature of variations, different individuals would have A solution of a substance ' X' is used for whitewashing. (i) Name the...
