Which of the following statements is cor...

Which of the following statements is correct about friction?

The coefficient of friction between a given pair of substances is largely independent of the area of contact between them.

The frictional force can never exceed the reaction force on the body from the support surface.

Rolling friction is only slightly smaller than slidmg friction.

The main source of friction is the irregularity of the surfaces in contact.

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The coefficient of friction between a given parir of substance is independent of the area of contact between them.`"mu" gt1` for copper on cast iron. Rolling friction is much smaller than sliding friction. Irregularity of the surfaces in contact is not a main contributor of riciton.

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Which of the following statements is correct about fructose?

It is dextrorotatory compound

It exists in the two cyclic forms which is obtained by the addition of OH at C-5 to the gt C =O group

It exists as six membered ring

It is named as furanose as it contain one oxygen and six carbon atom

Which of the following statements is correct about inductive effect

Implies the transfer of lone pair of electrons from more electronegative atoms to lesser electronegative atom in a molecule

Implies the transfer of lone pair of electrons from lesser electronegative atom to the more electronegative atom in a molecule

Increase with increase in distance

Implies the atoms ability to cause bond polarization

Which of the following statements is correct about the given complex?

It is a molecular complex

It gives four ions in the aqueous solution

Primary valency of cobalt is six.

All are correct.