General Science - Online Test
Q1. Comparing X-rays and Gamma rays
Answer : Option D
Explaination / Solution:
No Explaination.
Q2.
Which of the following statements doesn’t hold true for blood clotting cascade?
i. Ruptured platelets release thromboplastin.
ii. Prothrombinis converted into thrombin in the presence of vitamin K and Na+ions.
iii. Fibrinogen is converted into fibrin through enzymatic action of thrombin in the presence of Ca++ions
iv. Fibrin makes clot via process of polymerisation.
Answer : Option B
Explaination / Solution:
Ruptured platelets release thromboplastin. Fibrinogen present in blood plasma is converted into fibrin through enzymatic action of thrombin. Fibrin makes clot via process of polymerisation.
Q3. At the end of citric acid cycle, most of the energy is transferred to
Answer : Option D
Explaination / Solution:
Citric acid cycle or start with pyruvate and leads to complete oxidation of glucose to carbon dioxide and energy in form of ATP, NADH and .
At end of citric acid cycle, most of the energy is transferred to NADH and .
Q4. The chemical substances produced by some microbes and can kill or retard the growth of disease causing microbes are called
Answer : Option A
Explaination / Solution:
Antibiotics, also called antibacterials, are a type of antimicrobial drug used in the treatment and prevention of bacterial infections.They may either kill or inhibit the growth of bacteria.
Q5. in case of a heteronuclear molecule like HF, the shared electron pair between the two atoms gets displaced more towards fluorine since the electronegativity of fluorine is far greater than that of hydrogen. This results in the molecul
Answer : Option C
Explaination / Solution:
because of slight shifting of electron towards more electronegative element like F in HF brings a small amount of negative charge on F and positive charge on H which results in dipole moment.
Q6. If AC generator coil has area A, rotates in a magnetic field of B with an angular speed ω , the voltage generated is
Answer : Option C
Explaination / Solution:
e=NBAωSinωt
Q7. The momentum of photon having energy E is
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. All are biofuels except
Answer : Option D
Explaination / Solution:
Biopetrol is fuel having characteristic similar to petrol but is produced from palmitic acid. So, it is not a biofuel. Biodiesel, marsh gas and ethanol are biofuels produced by action of microbes.
Q9.
The dipole moment of chlorobenzene is lower than that of cyclohexyl chloride
chlorobenzenecyclohexyl chloride
chlorobenzenecyclohexyl chloride
Answer : Option D
Explaination / Solution:
Sp2 carbon is more electronegative than sp3 carbon.
Q10. Bandwidth is maximum, along the follow-ing communication channel.
Answer : Option B
Explaination / Solution:
No Explaination.
