Please select a subject first
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The general molecular formula for the homologous series of alkynes is _______.
Concept: Homologous Series
Write the molecular formula of the given compound.
Ethyl ethanoate
Concept: Functional Groups in Carbon Compounds
Cyclohexane is a branched chain type of hydrocarbon.
Concept: Functional Groups in Carbon Compounds
Distinguish between:
Saturated hydrocarbons - Unsaturated hydrocarbons
Concept: Functional Groups in Carbon Compounds
Identify the type of chemical reaction given below:
\[\ce{2Mg + O2 -> 2MgO}\]
Concept: Chemical Properties of Carbon Compounds > Oxidation
Identify saturated and unsaturated hydrocarbons from the given structural formula:
| \[\begin{array}{cc} \phantom{}\ce{H}\phantom{..}\ce{H}\phantom{}\\ \phantom{}|\phantom{...}|\phantom{}\\ \ce{H-C-C-H}\\ \phantom{}|\phantom{...}|\phantom{}\\ \phantom{}\ce{H}\phantom{..}\ce{H}\phantom{} \end{array}\] |
\[\begin{array}{cc} \phantom{..}\ce{H}\phantom{........}\ce{H}\phantom{.}\\ \phantom{.}\backslash\phantom{......}/\phantom{}\\ \ce{C = C}\\ \phantom{}/\phantom{......}\backslash\phantom{}\\ \phantom{}\ce{H}\phantom{........}\ce{H}\phantom{} \end{array}\] |
| (1) | (2) |
Concept: Hydrocarbons
Draw electron dot structure for the following:
\[\begin{array}{cc}
\phantom{}\ce{H}\phantom{..}\ce{H}\phantom{}\\
\phantom{}|\phantom{...}|\phantom{}\\
\ce{H-C-C-H}\\
\phantom{}|\phantom{...}|\phantom{}\\
\phantom{}\ce{H}\phantom{..}\ce{H}\phantom{}
\end{array}\]
Concept: Hydrocarbons
Draw electron dot structure for the following:
\[\begin{array}{cc}
\phantom{..}\ce{H}\phantom{........}\ce{H}\phantom{.}\\
\phantom{.}\backslash\phantom{......}/\phantom{}\\
\ce{C = C}\\
\phantom{}/\phantom{......}\backslash\phantom{}\\
\phantom{}\ce{H}\phantom{........}\ce{H}\phantom{}
\end{array}\]
Concept: Hydrocarbons
In the presence of the acid catalyst, ethanoic acid reacts with ethanol and ______ ester is produced.
Concept: Ethanoic Acid
The reaction between acetic acid and sodium carbonate is shown in the following figure.
Answer the questions with the help of a diagram.
- Which gas does come out as effervescence in the big test tube?
- What is the colour change in the lime water present in the small test tube?
- Write the related reaction.
Concept: Ethanoic Acid
Ethanoic acid reacts with the basic salt, sodium carbonate, to form a salt, named ______, water and carbon dioxide gas.
Concept: Ethanoic Acid
Bubbles are seen in the test tube during the preparation of lime water.
Concept: Ethanoic Acid
______ react with dil. HNO3 to evolve hydrogen gas.
Concept: Ethanol
It is recommended to use air tight containers for storing oil for a long time.
Concept: Chemical Properties of Carbon Compounds > Oxidation
Complete the following flow chart:
Concept: Hydrocarbons
______ is the functional group of carboxylic acid.
Concept: Functional Groups in Carbon Compounds
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.
Concept: Ethanoic Acid
Identify the hydrocarbon from the given electron-dot structure:
\[\begin{array}{cc}
\phantom{}\ce{H}\phantom{....}\ce{H}\phantom{}\\
\phantom{}\ce{H}\phantom{..}\ce{\text{}^\bullet_\bullet}\phantom{..}\ce{\overset{\bullet\phantom{.}\bullet}{\underset{\bullet\phantom{.}\bullet}{C}}}\phantom{..}\ce{\text{}^\bullet_\bullet}\phantom{..}\ce{\overset{\bullet\phantom{.}\bullet}{\underset{\bullet\phantom{.}\bullet}{C}}}\phantom{..}\ce{\text{}^\bullet_\bullet}\phantom{..}\ce{H}\phantom{}\\
\phantom{}\ce{H}\phantom{....}\ce{H}\phantom{}\\
\end{array}\]
Concept: Hydrocarbons
What is meant by an artificial satellite? How are the satellites classified based on their functions?
Concept: Artificial Satellites
