Microtubules

Photosynthesis

Mitochondrial cristea

Nucleoplasm

Which out of the following pairs is more stable and why?

How does the stabilities of free radicals resemble those of carbocations? Explain with the help of suitable examples.

Illustrate hyper conjugation with a suitable example.

Write the resonance structures of ethanoate ion. Is the negative charge localised or not?

Draw and explain various confirmations of butane. Which one of them is least stable and which one is the most stable?

Write the Fischer projections of stereoisomers of 2,3,4-trihydroxybutanal. Classify as them as erythrose or threose type. Also mark their configuration as D or L.

Write the geometrical isomers of 1,2-dimethylcyclopropane. Which one of them will have a dipole moment and why?

Write the chain isomers for a molecule having molecular formula C₅H_12-

Sea floor spreading

Draw the resonance structures of HCl. Out of them which one has little importance as a resonance structure and why?

Types of unconformities

Draw the resonance structures of HCl. Out of them which one has little importance as a resonance structure and why?

Write in detail the evidences in favour of the theory of continental drift.

Explain the types of volcanism based on explosive activity and nature of eruption.

Predict the molecular geometry of XeF₄ and PCl₅ molecules by using VSEPR theory.

Tectonic and non tectonic joints