Copper-T:

Assertion and reason type questions (for AIIMS aspirants) Assertion: Copper-T is an effective contraceptive device in human females. Reason: Copper-T prevents passage of sperm from vagina upwards into fallopian tubes.

A list of contraceptive methods are given. Categorise them into natural, barrier, IUDS. Oral contraceptives, Surgical. Condoms. Coitus interruptus, Diaphragms, Vasectomy, Copper T, Pills, LactationalAmenorMea, Loop. Tubectomy, Cervical caps, Cu 7, Periodic Abstinence.

When copper ore is mixed with silica, in a reverberatory furnace copper matte is produced. The copper matte contains _______________ . t

Why can't copper displace zinc from its salt solution?

Why can't copper replace H_(2) from an acid solution ?

which of the following graph represents the variation of resistivity ( rho ) with temperature (T) for copper?