Advertisements
Advertisements
Question
Which of the following is the correct observation of the reaction shown in the above set up?
Options
Brown powder of Magnesium oxide is formed.
Colourless gas which turns lime water milky is evolved.
Magnesium ribbon burns with brilliant white light.
Reddish brown gas with a smell of burning Sulphur has evolved.
Advertisements
Solution
Magnesium ribbon burns with brilliant white light.
APPEARS IN
RELATED QUESTIONS
Balance the given equation:
AI(OH)3 
AI2O3 +H2O
When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are elements.
The metal M reacts vigorously with water to form a solution S and a gas G. The solution S turns red litmus to blue whereas gas G, which is lighter than air, burns with a pop sound. Metal M has a low melting point and it is used as a coolant in nuclear reactors.
(a) What is metal M?
(b) What is solution S? Is it acidic or alkaline?
(c) What is gas G?
(d) Write a balanced chemical equation for the reaction which takes place when metal M reacts with water.
(e) Is this reaction exothermic or endothermic?
Balance the following equation. Also name the products formed.
`"Mg" + "O"_2 → "MgO"`
Balance the following equation. Also name the product formed.
FeCI2 + CI2 → FeCI3
What is the limitation of the reaction given in question 2?
Balance the following equation:
MnO2 + HCl → MnCl2 + H2O + Cl2
Write the balanced chemical equation of the following reaction.
copper + nitric acid → copper nitrate + nitric oxide + water
Name the following:
The gas evolved when a dilute acid is added to chalk [limestone].
Which among the following is(are) double displacement reaction(s)?
- `"Pb" + "CuCl"_2 -> "PbCl"_2 + "Cu"`
- `"Na"_2"SO"_4 + "BaCl"_2 -> "BaSO"_4 + 2"NaCl"`
- `"C" + "O"_2 -> "CO"_2`
- `"CH"_4 + 2"O"_2 -> "CO"_2 + 2"H"_2"O"`
