CBSE Class-10 Science: Questions 35 - 42 of 117
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Question number: 35
Question number: 36
Describe in Detail
Write the balanced chemical equation for the following
(a) Sodium hydroxide solution is treated with acetic acid to form sodium acetate and water.
(b) Ethanol is warmed with ethanoic acid to form ethyl acetate in the presence of concentrated H 2 SO 4 .
(c) Ethene is burnt in the presence of oxygen to form carbon dioxide, water and releases heat and light.
(d) Nitrogen gas is treated with hydrogen gas in the presence of a catalyst at 773K to form ammonia gas.
(a) NaOH (sodium hydro-oxide) + CH3COOH (acetic acid) = CH3COONa (sodium acetate) + H2O (water) , as number of atoms on both sides are equal it is a balanced equation.
(b) C2H5OH (ethanol) + CH3COOH (ethanoic acid) =… (61 more words) …
Question number: 37
Write in Short
Animesh took a magnesium ribbon (cleaned) and burned it on a flame. The white powder formed was taken in a test tube and water was added to it. He then tested the solution formed with red and blue litmus paper. What change was seen? Why?