English Medium कक्षा १० - CBSE Question Bank Solutions for Science

Write the molecular formula of the 2^nd and the 3^rd member of the homologous series whose first member is methane.

Write the molecular formula of ethanol.

Fill in the following blank with suitable word:

The next homologue of C₂H₅OH is ...............

Fill in the following blank with suitable word:

The next higher homologue of ethane is ...............

Fill in the following blank with suitable word.

The functional group present in ethanol is ...............

 Organic compounds having functional group are known as  

Match the formulae in group A with appropriate names from group B:
Group A: CH₃COOH, CH₃CHO, CH₃OH
Group B: Ethanol, Methanol, Ethanal, Ethanoic acid

Give one exampleof the compound having the following functional group:
Alcohol group

What is the molecular formula and structure of the alcohol which can be thought to be derived from pentane?

Write the name of the following functional group:

What is meant by a functional group? Explain with an example.

Draw the structures for the following compounds:
Ethanal

Draw the structures for the following compounds:
Propanal

Draw the structures for the following compound:

Butanal

Draw the structures for the following compounds of Pentanal

Three organic compounds A, B and C have the following molecular formulae: C₄H₈O₂

_{Which compound contains an alcohol group? Write its name and structural formula.}

Name the hydrocarbon formed when ethanol is heated with conc. H₂SO₄ at 170°C? What is this reaction known as?

What happens when (give chemical equation):
Sodium reacts with ethanol (ethyl alcohol)