Advertisements
Advertisements
प्रश्न
Zn + 2 HCl → ZnCl2 +_____↑
विकल्प
H2
O2
CO2
Advertisements
उत्तर
Zn + 2 HCl → ZnCl2 +H2↑
APPEARS IN
संबंधित प्रश्न
Name an indicator which is pink in alkaline solution but turns colourless in acidic solution.
Why do HCl, H2SO4, HNO3, etc., show acidic character in aqueous solutions while solutions of compounds like C6H12O6 (glucose) and C2H5OH (alcohol) do not show acidic character?
Give the names and formulae of two strong bases and two weak bases.
What type of ions is formed when an acid is dissolved in water?
Wasp sting contains:
(a) a sugar solution
(b) an acidic liquid
(c) a salt solution
(d) an alkaline liquid
Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?
If iron reacts with dilute sulphuric acid, what will be the products?
Most of the acids are not soluble in water.
You are supplied with five solutions: A, B, C, D and E with pH values as follows: A = 1.8, B = 7, C = 8.5, D = 13, and E = 5
Classify these solutions as neutral, slightly or strongly acidic and slightly or strongly alkaline.
Which solution would be most likely to liberate hydrogen with powdered zinc metal. Give a word equation for each reaction.
Consider the acidity of the carboxylic acids:
(1) PhCOOH
(2) o-NO2C6H4COOH
(3) p-NO2C6H4COOH
(4) m-NO2C6H4COOH
