Advertisements
Advertisements
Question
What are catalysts?
Advertisements
Solution
Catalyst is a substance which increases the rate of a reaction without causing any disturbance to it.
APPEARS IN
RELATED QUESTIONS
The molecular formula of acetic acid is _________ .
(a) CH3COOH
(b) CH3 – CH3
(c) C6H6
(d) C2H4
A student adds 2 mL of acetic acid to a test tube containing 2 mL of distilled water. He then shakes the test tube well and leaves it to settle for some time. After about 5 minutes he observes that in the test tube there is :
(A) a clear transparent colourless solution
(B) a clear transparent pink solution
(C) a precipitate settling at the bottom of the test tube
(D) a layer of water the layer of acetic acid
A student takes about 6 ml of distilled water in each of the four test tubes P, Q, R and S. He then dissolves an equal amount of four different salts namely, sodium chloride in 'P', potassium chloride in 'Q', calcium chloride in 'R' and magnesium chloride in 'S'. Next, he then adds 10 drops of soap solution to each test tube and shakes its contents. The test tubes in which scum (insoluble substance) is formed with soap are:
(A) P and Q
(B) Q and R
(C) R and S
(D) Q and S
Complete the following chemical equation:
\[\ce{CH3COOC2H5 + NaOH ->}\]
Complete the following chemical equations:
C2H5OH+CH3COOH`("conc."H_2SO_4)/`>
Complete the following chemical equations : C2H5OH`("Conc."H_2SO_4)/(443K)`>
Write the IUPAC names, common names and formulae of the first two members of the homologous series of carboxylic acids.
What type of compound is CH3COOH?
What happens when ethanoic acid reacts with sodium hydroxide? Write equation of the reaction involved.
An organic acid X is a liquid, which often freezes during winter time in cold countries, having the molecular formula C2H4O2. On warming it with methanol in the presence of a few drops of concentrated sulphuric acid, a compound Y with a sweet smell is formed.
(a) Identify X and Y. Also write their formulae showing the functional group present in them.
(b) Write a chemical equation for the reaction involved.
What do you notice when acetic acid reacts with metals?
Write a balanced equation for the following:
Write the equation for the preparation of ethylene from ethyl alcohol.
Using appropriate catalysts, ethane can be oxidized to an alcohol. Name the alcohol formed when ethane is oxidized.
Write a balanced chemical equation for the following:
A mixture of sodalime and sodium acetate is heated.
State the observation
When the gaseous product obtained by dehydration of ethyl alcohol is passed through bromine water.
Vinegar is a solution of ______.
What happens when a small piece of sodium is dropped in ethanol? Write the equation for this reaction.
Observe the diagram given below and answer the questions:

- Name the reactants in this reaction.
- Which gas comes out as effervescence in the bigger test tube?
- What is the colour change in the lime water?
- In the above experiment instead of sodium carbonate which chemical can be used to get same products?
- Write the use of acetic acid.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
