A blunt nail easily penetrates in wood than sharp nail. True/False.

Explain the Why does a sharp nail easily penetrate wood, but not a blunt nail?

Phenol is a ul("stronger acid") than carbonic acid. (True/False)

Hammer of mass M strikes a nail of mass 'm' with a velocity 20 m/s into a fixed wall. The nail penetrates into the wall to a depth of 1 cm. The average resistance of the wall to the penetration of the nail is

The molecularity of a complex reaction is always greater than the order of the reaction. True or False

Graphite is a better lubricant on the moon than on the earth . True or false

State whether the following statements are true or false. Blue-green algae are more closely related to bacteria than to green algae. A. True B. False

Benzoic acid is stronger than methanoic acid but weaker than ethanoic acid. True or False

The atomic radii of group 13 elements are larger than those of group 2 elements. True/False.

The elements of group 13 are more electronegative than those of groups 1 and 2.True/False

Explain the following : (a) It is easier to cut with a sharp knife than with a blunt one. (b) Sleepers are laid below the rails.