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a A dilute ac...

Question

(a) A dilute acid B does not normally give hydrogen when reacted with metals but gives a gas when reacted with copper. Identify B. Write equation with copper.
(b) Complete the table :
$\begin{matrix} N a m e o f P r o c e s s & I n p u t s & E q u a t i o n s & O u t p u t A m m o n i a & N i t r i c + A i r & a c i d \end{matrix}$
(c) What is the property of nirtic acid which allows it to react with copper? [5 MARKS]

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Solution

a) 2 Mark
b) 2 Marks
c) 1 Mark

(a) B is dil. $H N O_{3}$ . When it reacts with copper it gives NO.
$3 C u + 8 H N O_{3} (d i l .) \to 3 C u (N O_{3})_{2} + 4 H_{2} O + 2 N O$

$\begin{matrix} N a m e o f P r o c e s s & I n p u t s & E q u a t i o n s & O u t p u t O s t w a l d p r o c e s s & A m m o n i a & 4 N H_{3} + 50_{2} \frac{P t}{800^{\circ} C} \to 4 N O + 6 H_{2} O & N i t r i c + & 2 N O + O_{2} \to 2 N O_{2} & a c i d A i r & 4 N O_{2} + 2 H_{2} O + O_{2} \to 4 H N O_{3} \end{matrix}$

(c) Nitric acid reacts with copper because it is an oxidising agent.

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Similar questions

Q. Identify the substances B. If dilute acid 'B' which does not normally give hydrogen when reacted with metals but does give a gas when it reacts with copper.

Q. (a) Dilute nitric acid is generally considered a typical acid except for its reaction with metals. In what way is dilute nitric acid different from other acids when it reacts with metals?
(b) Write the equation for the reaction of dilute nitric acid with copper. [4 MARKS]

Q. Question 7
Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?

(a) magnesium
(b) aluminium
(c) iron
(d) copper

Q. Question 7
Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?

(a) magnesium
(b) aluminium
(c) iron
(d) copper

Q. Metals like copper fail to evolve hydrogen gas on reacting with dilute nitric acid.

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