General Science - Online Test
Q1. Which of the following physical quantities a vector?
Answer : Option B
Explaination / Solution:
Angular momentum is a vector quantity (more precisely, a pseudovector) that represents the product of a body's rotational inertia and rotational velocity about a particular axis.
Q2. In which of the following systems, the dispersed phase and dispersion medium are both solid?
Answer : Option A
Explaination / Solution:
It is a Sol type of colloid.
Q3. Which sector is known a service sector
Answer : Option D
Explaination / Solution:
The tertiary industry is the segment of the economy that provides services to its consumers; this includes a wide range of businesses such as financial institutions, schools and restaurants. It is also known as the tertiary sector or service industry/sector.
Q4. The direction of an electric dipole
Answer : Option C
Explaination / Solution:
Dipole Moment— It is a vector quantity and is directed from negative charge to positive charge along the axis. It is denoted as and is defined as the product of the magnitude of either of the charge and the dipole length i.e.
Q5. Bulk modulus is
Answer : Option D
Explaination / Solution:
No Explaination.
Q6. Eco RI acting on goi and vector will produce
Answer : Option C
Explaination / Solution:
Restriction enzymes, such as EcoRI, are used in a wide variety of molecular genetics techniques including cloning, DNA screening and deleting sections of DNA in vitro. Restriction enzymes, like EcoRI, that generate sticky ends of DNA are often used to cut DNA prior to ligation, as the sticky ends make the ligation reaction more efficient.
Q7. Conditional reabsorption of sodium ions and water takes place in
Answer : Option D
Explaination / Solution:
Distal Convoluted Tubule (DCT): Conditional reabsorption of Na+ and water takes place in this segment. DCT is also capable of reabsorption of HCO3- and selective secretion of hydrogen and potassium ions and NH3 to maintain the pH and sodium-potassium balance in blood.
Q8. A refrigerator's working substance
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. Which one of the following is incorrect about the characteristics of protobionts (coacervates and microspheres) as envisaged in the abiogenic origin of life?
Answer : Option B
Explaination / Solution:
Protobionts that include coacervates and microspheres are involved in origin of life from inorganic substance. Coacervate and microspheres are separate combinations of molecules from surroundings that leads to formation of first life on earth.
Q10. The deviation from ideal behavior can be measured in terms of compressibility factor Z, which is
Answer : Option A
Explaination / Solution:
Z=PV/nRT, is a correction factor which describe the deviation of real gas from ideal gas behaviour. it is defined as the ratio of the molar volume of a gas to the molar volume of an ideal gas at the same temperature and pressure.
