Consider the following statements regarding e-waste1. Pyro metallurgy and hydro metallurgy are the processes used to extract gold from e-waste2. Pyro metallurgy is a process in which leaching chemicals are used.3. Hydro metallurgy is a process to extract gold using high temperatures.Select the incorrect statements

For Competitive Exams

Consider the following statements regarding e-waste
1. Pyro metallurgy and hydro metallurgy are the processes used to extract gold from e-waste
2. Pyro metallurgy is a process in which leaching chemicals are used.
3. Hydro metallurgy is a process to extract gold using high temperatures.
Select the incorrect statements

Only 1

Only 1 and 2

Only 2 and 3

All of the above

Explanation:

Pyro metallurgy is a process to extract gold using high temperature and hydro metallurgy is a process to in which leaching chemicals are used.

Next Question

Consider the following statements:
1. Orbital speed of a satellite is independent of its mass
2. Orbital speed of a satellite depends upon the radius of orbit (height of satellite from the surface of earth)
3. Period of revolution of a satellite is independent of its mass
4. Escape velocity is independent of the mass, shape and size of the body and its direction of projection
Which of the statements given above is/are correct?

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