Chemistry-

General

Easy

Question

# Which of the following is used as life saving substance as blood plasma

- Cellulose
- Teflon
- Bakelite
- Polyvinyl pyrrolidone

## The correct answer is: Polyvinyl pyrrolidone

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### If r represents the radius of the orbit of a satellite of mass m moving around a planet of mass M , the velocity of the satellite is given by

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Maths-

### 1.2.3+2.3.4+3.4.5+........n terms. Find sum to n terms.

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### The inverse of the function is

We used rules of indices to solve the question. For such questions, we should be familiar with rules of indices.

### The inverse of the function is

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We used rules of indices to solve the question. For such questions, we should be familiar with rules of indices.