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प्रश्न
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.
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उत्तर
A = Strongly acidic
B = neutral
C = Slightly alkaline
D = Strongly alkaline
E = Slightly acidic
Solution (A) would liberate hydrogen with powdered zinc metal.
\[\ce{Zinc + Acid -> Salt of zinc + Hydrogen}\]
संबंधित प्रश्न
Name the gas evolved when dilute HCl reacts with sodium hydrogencarbonate. How is it recognised?
Which gas is usually liberated when an acid reacts with a metal?
What do you understand by the term, acid?
What is the difference between an alkali and a base?
Write balanced equation to satisfy the following statement:
\[\ce{Acid + Base -> Salt + water}\]
Write balanced equation to satisfy the following statement:
\[\ce{Acid + sulphide -> Salt + Hydrogen sulphide}\]
Give the name and formula of two : Non-volatile acids
Give the reaction of acid with chlorides. State the conditions under which they react.
In acidic solutions blue litmus changes into ______ colour.
Acids have a sour taste and they are soapy to touch.
