Cryolite is used in the electrolytic extraction of aluminium, because . a.it dissolves alumina b.it dissolves sodium c.it dissolves aluminium fluoride d.it decreases the solubility

Answers 1

Answer:

option a is correct .

The use of molten cryolite as a solvent reduces some of the energy costs involved in extracting aluminium by allowing the ions in aluminium oxide to move freely at a lower temperature.

Explanation:

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Relation between amino acids and proteins is similar to the one between: a.nucleotides and nucleic acids b.RNA and DNA c.Glucose and Fructose d.Glucose and Mannose

Answer:

option a is correct .

Amino acids and proteins are similar to the Nucleotides and nucleic acids Just as proteins are made up of numbers of amino acids, similarly nucleic acids, which include DNA (deoxyribonucleic acid) and RNA (ribonucleic acid), are made from monomers known as nucleotides.

Explanation:

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The hydrolysis of acetic anhydride (CH3CO)2O + H2O-2CH3COOH is an example of : a.Pseudo first order reaction b.Pseudo second order reaction c.Zero order reaction d.Third order reaction

Answer:

option a is correct .

It is an example of pseudo first order reaction because here H2O is in excess. Thus, rate of reaction depends on only concentration of acetic anhydride.

Explanation:

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Glucose and mannose are: | Chemistry Questions a.optical isomers b.anomers c.epimers d.functional isomers

Explanation:

glucose and mannose are epimers. Hence, the correct answer is option (c)

IUPAC name of glycine is: | Chemistry Questions a.2 - Aminopropanoic acid b.2 - Aminobutanoic acid c.2 - Aminoethanoic acid d.2 - Aminopent - 1,5 - dioic acid

Answer:

IUPAC name of glycine is:

2 - Aminoethanoic acid

Answer:

Correct option is C)

IUPAC name of glycine is 2-Aminoethanoic acid.

Its molecular formula is NH 2 CH2 COOH.

Hence,Option C is the correct answer.

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