Page Number- 1

(1) The Boiling point of water is??

  • A. 100°C
  • B. 110°C
  • C. 93°C
  • D. 90°C
0
(a) 100°C

(2) The Number of significant digits in 0.200g is:?

  • A. 1
  • B. 2
  • C. 3
  • D. 4
0
(c) 3

(3) Number of atoms in 16u of He is:?

  • A. 4
  • B. 16
  • C. 4NA
  • D. 2NA
0
(a) 4

(4) 6.022×10²³ is known as??

  • A. Avogadro Constant
  • B. Isotopes
  • C. Isobar
  • D. None
0
(a) Avogadro Constant

(5) Isobars are atoms?

  • A. Same atomic number
  • B. Same mass number
  • C. Same no. Of proton
  • D. Same no. Of neuron
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(b) Same mass number

(6) Correct order of wavelength?

  • A. IR > Visible > UV
  • B. UV > IR > Visible
  • C. Visible > IR > UV
  • D. Visible > UV > IR
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(a) IR > Visible > UV

(7) The Maximum Number of electrons present in the 4th shell is??

  • A. 2
  • B. 8
  • C. 16
  • D. 32
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(d) 32

(8) The Number of Orbitals present in L-shell is ?

  • A. 4
  • B. 8
  • C. 16
  • D. 32
0
(a) 4

(9) Total Number of Nodes present in 3d subshell is??

  • A. 0
  • B. 1
  • C. 2
  • D. 3
0
(c) 2

(10) Which orbital is maximum in energy for a hydrogen atom??

  • A. 6s
  • B. 5p
  • C. 4d
  • D. 5f
0
(a) 6s
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