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प्रश्न
Write the chemical equation of the reaction which takes place when iron reacts with dilute sulphuric acid. What happens when the gas produced is ignited with a burning matchstick?
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उत्तर
The chemical equation of the reaction between iron and dilute sulphuric acid is as follows:
Fe(s) + H2SO4(aq) → FeSO4(aq) + H2(g)
When the hydrogen gas produced is ignited with a burning matchstick, the gas burns with a 'pop' sound and a small explosion takes place.
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संबंधित प्रश्न
Write the chemical reaction when iron reacts with dilute H2SO4.
State whether the following statement is true or false:
Non-metals react with dilute acids to produce a gas which burns with a 'pop' sound.
From amongst the metals sodium, calcium aluminium, copper and magnesium, name the metal:
(i) which reacts with water only on boiling, and
(ii) another which does not react even with steam.
What name is given to those metal oxides which show basic as well as acidic behaviour?
What type of oxides are formed when non-metals react with oxygen? Explain with an example.
Give one example, with equation, of the displacement of hydrogen by a metal from an acid.
Name another metal oxide which behaves like aluminium oxide.
Name one metal more reactive and another less reactive than hydrogen.
An element X reacts with hydrogen, when heated, to form a covalent hydride H2X. If H2X has a smell of rotten eggs, the element X is likely to be:
(a) carbon
(b) sulphur
(c) chlorine
(d) phosphorus
Out of the following oxides, the amphoteric oxide is:
(a) Fe2O3
(b) Al2O3
(c) P2O5
(d) N2O
The elements whose oxides can turn litmus solution blue are:
(a) carbon and sulphur
(b) sodium and carbon
(c) potassium and magnesium
(d) magnesium and sulphur
An element E reacts with water to form a solution which turns phenolphthalein solution pink. The element E is most likely to be:
(a) S
(b) Ca
(c) C
(d) Ag
Metal A burns in air, on heating, to form an oxide A2O3 whereas another metal B burns in air only on strong heating to form an oxide BO. The two oxides A2O3 and BO can react with hydrochloric acid as well as sodium hydroxide solution to form the corresponding salts and water.
(a) What is the nature of oxide A2O3?
(b) What is the nature of oxide BO?
(c) Name one metal like A.
(b) Name one metal like B.
State and explain the reaction, if any, of the following metals with a solution of copper sulphate:
(a) Gold
(b) Copper
(c) Zinc
(d) Mercury
Choose the correct alternative and rewrite the following:
Which of the following is lue in colour?
Write the chemical equation of the above process.
Where does the metal aluminium, used in the thermit process, occurs in the reactivity series of metals?
Arrange the following metals in the increasing order of their reactivities:
Copper, Zinc, Aluminium, and Iron
Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?
Find the odd one out:
