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प्रश्न
In the chemical equation the _______ are written on the left-hand side.
विकल्प
products
reactants
element
catalyst
उत्तर
In the chemical equation the reactants are written on the left-hand side.
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संबंधित प्रश्न
Why should a magnesium ribbon be cleaned before it is burnt in air?
Balance the following chemical equation.
\[\ce{NaCl + AgNO3 -> AgCl + NaNO3}\]
2 mL of sodium hydroxide solution is added to a few pieces of granulated zinc metal taken in a test tube. When the contents are warmed, a gas evolves which is bubbled through a soap solution before testing. Write the equation of the chemical reaction involved and the test to detect the gas. Name the gas which will be evolved when the same metal reacts with dilute solution of a strong acid.
On what basis is a chemical equation balanced?
What does the symbol (aq) represent in a chemical equation?
Balance the given equation:
Mg(OH)2 + HCI MgCI + H2O
Balance the given equation:
Fe + O2 
Fe2O3
Balance the gievn equation:
NaOH + H2SO4 
Na2SO4 + 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 compounds.
What are the various ways in which a chemical equation can be made more informative? Give examples to illustrate your answer.
Write balanced chemical equation from the following information:
An aqueous calcium hydroxide solution (lime water) reacts with carbon dioxide gas to produce a solid calcium carbonate precipitate and water.
Carbon monoxide reacts with hydrogen under certain conditions to form methanol (CH3OH). Write a balanced chemical equation for this reaction indicating the physical states of reactants and product as well as the conditions under which this reaction takes place.
Substitute formulae for names and balance the following equation:
Calcium carbonate reacts with hydrochloric acid to produce calcium chloride, water and carbon dioxide gas.
State one characteristic of the chemical reaction which takes place when dilute hydrochloric acid is added to sodium carbonate.
What do you understand by exothermic reactions?
The chemical reaction between quicklime and water is characterised by:
(a) evolution of hydrogen gas
(b) formation of slaked lime precipitate
(c) change in temperature of mixture
(d) change in colour of the product
The removal of oxygen from a substance is called:
(a) oxidation
(b) corrosion
(c) reduction
(d) rancidity
Name the type of chemical reaction shown by the following equation:
2Mg+ O2 → 2MgO
What information do you get from the equation H2+ Cl2 → 2HCl ?
Balance the following equation. Also name the product formed.
`"KCIO"_3 → "KCI" +"O"_2`
Balance the following equation. Also name the product formed.
CO2 + C → CO
Complete the following equation:
CH3COOH + NaOH →
In the experiment for determining the percentage of water absorbed by raisins, we do the final weighing of the raisins after keeping them dipped in water for about one hour. For the accuracy of the result, the extra water from the surface of the soaked raisins is removed by
Write the chemical equation for the following word equation and balance them.
Calcium + Nitrogen → Calcium nitride
Balance the following equation:
S + H2SO4 → SO2 + H2O
Write the balanced chemical equation of the following reaction.
aluminium sulphate + sodium hydroxide → sodium sulphate + sodium meta aluminate + water.
Write the balanced chemical equation of the following reaction.
potassium dichromate + hydrochloric acid → Potassium chloride + chromium chloride + water + chlorine
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate moles of chlorine gas formed.
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate moles of acid required.
Answer the following question.
What is observed when 2 mL of dilute hydrochloric acid is added to 1 g of sodium carbonate taken in a clean and dry test tube? Write a chemical equation for the reaction involved.
Write word equation for the following molecular equation:
\[\ce{CuSO4 + 2NaOH -> Na2SO4 + Cu(OH)2↓}\]
Word equation:
State the colour of the products.
In certain reaction an insoluble solid called precipitate is formed. State the colour and name of the precipitate formed in the following reaction involving addition of:
Copper [II] sulphate to sodium hydroxide.
Write word equation for the following chemical reaction given below. Also state the observation seen in the case.
\[\ce{ZnCo3->[\triangle] ZnO + CO2}\]
Give an example of a chemical equation in which two reactants form:
one product
Balance the following simple equation:
ZnS + O2 → ZnO + SO2
Balance the following simple equation:
Al + O2 → Al2O3
Balance the following simple equation:
H2 + Cl2 → HCl
Balance the following simple equation:
Fe + H2O ⇌ Fe3O4 + H2
Which among the following statement(s) is(are) true? ‘Exposure of silver chloride to sunlight for a long duration turns grey due to
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- sublimation of silver chloride
- decomposition of chlorine gas from silver chloride
- oxidation of silver chloride
