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Answered on 09 Jan CBSE/Class 12/Science/Chemistry1 Tuition/Class XI-XII Tuition (PUC)

Why the two oxygen-oxygen bond lengths in ozone molecule are identical?

Mridul K.

Mathematics Teacher

Both the bonds are identical due to resonance and hence exhibit equal bond length.

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Answered on 10 Jan CBSE/Class 12/Science/Chemistry1 Tuition/Class XI-XII Tuition (PUC)

What type of linkage is present in disaccharides?

Richa Subhash

Tutor

Glycosidic bond.

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Answered on 10 Jan CBSE/Class 12/Science/Chemistry1 Tuition/Class XI-XII Tuition (PUC)

On adding NaOH to ammonium sulphate, a colourless gas with pungent odour is evolved, which forms a blue-coloured...

Richa Subhash

Tutor

Ammonia.

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Answered on 10 Jan CBSE/Class 12/Science/Chemistry1 Tuition/Class XI-XII Tuition (PUC)

Differentiate between adsorbtion and absorption.

Richa Subhash

Tutor

Adsorption occurs only on the surface of the adsorbing material whereas absorption is a bulk process...

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Answered on 10 Jan CBSE/Class 12/Science/Chemistry1 Tuition/Class XI-XII Tuition (PUC)

What is the difference between a nucleoside and nucleotide?

Richa Subhash

Tutor

Nucleoside consists of a sugar attached to a nitrogenous base whereas a nucleotide consists of sugar,...

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Answered on 09 Jan CBSE/Class 12/Science/Chemistry1 Tuition/Class XI-XII Tuition (PUC)

In the extraction of Al, impure Al2O3 is dissolved in conc. NaOH to form sodium aluminate and leaving...

Mridul K.

Mathematics Teacher

It's called the Bayer Process.

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Answered on 09 Jan CBSE/Class 12/Science/Chemistry1 Tuition/Class XI-XII Tuition (PUC)

Name the vitamin whose deficiency causes convulsions.

Mridul K.

Mathematics Teacher

Vitamin B6.

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Answered on 10 Jan CBSE/Class 12/Science/Chemistry1 Tuition/Class XI-XII Tuition (PUC)

What is the role of t-butyl peroxide in the polymerization of ethene?

Richa Subhash

Tutor

It initiates a free radical attack on ethene.

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Answered on 10 Jan CBSE/Class 12/Science/Chemistry1 Tuition/Class XI-XII Tuition (PUC)

Why aldehydes (R-CHO) are more reactive than ketones (R-CO-R) towards nucleophilic addition reaction?

Roshan lal

Tutor

There are three factors: 1. As in aldehyde H is present in one side but in ketone, both sides bulky...

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Answered on 10 Jan CBSE/Class 12/Science/Chemistry1 Tuition/Class XI-XII Tuition (PUC)

Why Zn is soft whereas Cr is hard?

Roshan lal

Tutor

Zn is having fulfilled (d10) orbit which makes it less reactive and can not form metallic bonds but Cr...

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