Practice MCQ Questions and answers on Chemistry-GK Page-4 section-1

Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Section 9 Section 10 Section 11 Section 12

31.
The oil used in the froth floatation process is

A. coconut oil

B. olive oil

C. kerosene oil

D. pine oil

Answer & Solution Discuss in Board Save for Later

32.
The number of waves in n x 10^th Bohr's orbit are

A. n²

B. n

C. n^-2

D. n³

Answer & Solution Discuss in Board Save for Later

33.
The mass of one Avogadro number of helium atom is

A. 1.00 gram

B. 4.00 gram

C. 8.00 gram

D. 4 x 6.02 x 10²³ gram

Answer & Solution Discuss in Board Save for Later

34.
The items amenable to detection by soft x-rays are

A. contrabands

B. lead in bullets

C. narcotics

D. genuine coins from counterfeit coins

Answer & Solution Discuss in Board Save for Later

35.
The material which can be deformed permanently by heat and pressure is called a

A. thermoplastic

B. thermoset

C. chemical compound

D. polymer

Answer & Solution Discuss in Board Save for Later

36.
The mass number of a nucleus is

A. always less than its atomic number

B. the sum of the number of protons and neutrons present in the nucleus

C. always more than the atomic weight

D. a fraction

Answer & Solution Discuss in Board Save for Later

37.
The inexpensive and commonly used variety of glass is called soda glass. It is called so because

A. was used initially for making bottles of soda(carbonated drink)

B. is made using soda(sodium carbonate)

C. was initially used for storing sodium carbonate

D. is made using soda lime

Answer & Solution Discuss in Board Save for Later

38.
The gas used in the manufacture of vanaspati from vegetable oil is

A. hydrogen

B. oxygen

C. nitrogen

D. carbon dioxide

Answer & Solution Discuss in Board Save for Later

39.
The ionic radii of N^3-, O^2-, F^- and Na⁺ follows the order

A. N^3- > O^2- > F^- > Na⁺

B. N^3- > Na⁺ > O^2- > F^-

C. Na⁺ > O^2- > N^3- > F^-

D. O^2- > F^- > Na⁺ > N^3-

Answer & Solution Discuss in Board Save for Later

40.
The graphite rods in the nuclear reactor

A. react with U to release energy

B. produce neutrons

C. undergo combustion which triggers the nuclear fission

D. convert fast moving neutrons into thermal neutrons

Answer & Solution Discuss in Board Save for Later

1 2 3 4 5 6 7 8 9 10

Practice MCQ Questions and answers on Chemistry-GK

31. The oil used in the froth floatation process is

Answer & Solution

32. The number of waves in n x 10th Bohr's orbit are

Answer & Solution

33. The mass of one Avogadro number of helium atom is

Answer & Solution

34. The items amenable to detection by soft x-rays are

Answer & Solution

35. The material which can be deformed permanently by heat and pressure is called a

Answer & Solution

36. The mass number of a nucleus is

Answer & Solution

37. The inexpensive and commonly used variety of glass is called soda glass. It is called so because

Answer & Solution

38. The gas used in the manufacture of vanaspati from vegetable oil is

Answer & Solution

39. The ionic radii of N3-, O2-, F- and Na+ follows the order

Answer & Solution

40. The graphite rods in the nuclear reactor

Answer & Solution

Read More Section(Chemistry)

31.
The oil used in the froth floatation process is

32.
The number of waves in n x 10^th Bohr's orbit are

33.
The mass of one Avogadro number of helium atom is

34.
The items amenable to detection by soft x-rays are

35.
The material which can be deformed permanently by heat and pressure is called a

36.
The mass number of a nucleus is

37.
The inexpensive and commonly used variety of glass is called soda glass. It is called so because

38.
The gas used in the manufacture of vanaspati from vegetable oil is

39.
The ionic radii of N^3-, O^2-, F^- and Na⁺ follows the order

40.
The graphite rods in the nuclear reactor