Friday, August 22, 2014

Objective Science Questions Answers - 22 Aug 2014

1. _______________ is the chief constituent of gobar gas(Biogas).

2. The colour of violet glass is due to presence of ____________________.

3. _________________ is the combustible material on the tip of the saftey matchstick.
[B]Antimony sulphide
[D]Manganese dioxide

4. What is the commercial name for calcium hydride?
[B]Slaked lime

5. The cyclotron is a device for ________________________.
[A]Producing protons
[B]Purifying metals
[C]Separating oil from water
[D]Accelerating particles