General Science - Online Test
Q1.
If the outermost circle in the shown figure indicates manipulative zone of biosphere reserve then 1& 2 represent:
Answer : Option A
Explaination / Solution:
Biosphere reserves are divided into a number of zone. The outer most circle of biosphere represent manipulative zone followed by buffer zone and core zone respectively from outside to inside.
Q2. The compound [Cr(H2O)6]Cl3 and [Cr(H2O)4Cl2]Cl.2H2O represent
Answer : Option B
Explaination / Solution:
There is exchange of 4H_2O$ molecules inside and outside the coordination sphere.
Q3. Enthalpies of formation of CO(g), , and are -110, –-393, 81 and 9.7 kJ respectively. Find the value of for the reaction:
Answer : Option C
Explaination / Solution:
Q4. Which of the following scientists won the nobel prize for discovering second messengers?
Answer : Option D
Explaination / Solution:
Second messengers are molecules that relay signals received at receptors on the cell surface to trigger physiological changes.
The Nobel Prize in Physiology or Medicine 1971 was awarded to Earl W. Sutherland, Jr. "for his discoveries concerning the mechanisms of the action of hormones".
Q5. How much electricity in terms of Faraday is required to produce 40.0 g of Al from molten ?
Answer : Option C
Explaination / Solution:
Moles of Al= 40/27. For 1 mol of Al deposition 3F charge is required.
Q6. A fish that has electric organ is
Answer : Option A
Explaination / Solution:
Torpedo fish has electric organ. They are known for being capable of producing an electric discharge ranging from 8 to 220 volts depending on species.
Q7. Which one of the following is not a secondary functions of money
Answer : Option C
Explaination / Solution:
No Explaination.
Q8. Electrons are forbidden in a band (in a crystal) called the
Answer : Option A
Explaination / Solution:
A region of values of energy that electrons in an ideal crystal (without defects) cannot have. In semiconductors the forbidden band separating the valence band and the conduction band is usually considered. In this case the energy difference between the lower level (bottom) of the conduction band and the upper level (ceiling) of the valence band is called the width of the forbidden band.
Q9. From the following which is not a kind of index number
Answer : Option D
Explaination / Solution:
No Explaination.
Q10. Scrotal sacs of man and rabbit are connected with the abdominal cavity by
Answer : Option B
Explaination / Solution:
Scrotal sac contains testes in male. Scrotal sacs are connected with the abdominal cavity by inguinal canal which is a passage in the anterior abdominal wall which in man conveys the spermatic cord.
