Q.1 Which of the following statements are correct regarding different generations of bio – fuels?
- First-generation biofuels are those which are made from feedstocks that can also be consumed as human food.
- Second-generation fuels are produced from sustainable feedstock but these feedstocks are not normally used for human consumption.
- Third generation fuels are obtained from algae.
Which of the above statements are correct?
- 1 and 2
- 2 and 3
- 1 and 3
- All of the above
Q.2 A new concept of Space Based Solar Power (SBSP) is an idea under consideration to generate clean energy. Which of the following statements is/are correct regarding SBSP?
- It is the concept of collecting solar power in outer space and distributing it to Earth.
- Solar collectors will collect the light in space and beam it back to earth as microwaves.
Select the code from following:
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
Q.3 Recently, an India-UK Joint Team won the Newton-Bhabha Fund for a project on –
- Groundwater Arsenic Research in Ganga River Basin.
- Tapping huge atomic mineral deposits in Kerala and to meet the energy needs of the country.
- Mining precious metals trapped in magma on the seabed of the Indian Ocean.
- Neutrino project in Theni district in Tamil Nadu.
Q.4 Consider the below statements about neutrinos and identify the incorrect statement:
- Neutrino is a tiny elementary particle, but it is not part of the atom.
- Neutrino has a very tiny mass, no charge and spin half.
- Natural neutrinos are harmful as they generate radiation and can cause diseases.
- Neutrinos come from the sun (solar neutrinos) and other stars, cosmic rays that come from beyond the solar system, and from the Big Bang from which our Universe originated.
Q.5Consider the following statements about Noble Gases and identify the incorrect statement:
- All of the elements in Group Zero are noble gases.
- The list includes helium, neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).
- They are called noble gases because they are so majestic that, in general, they don’t react with anything.
- Among all noble gases, Neon is the most reactive and xenon is very unreactive.