1:   Out of the following elements which one do you expect to be most reactive chemically
Options:
  1. Mg
  2. Ca
  3. Sr
  4. Ba

Answer: Option 4

Explanation:

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2:   The total number of rare earth elements is
Options:
  1. 8
  2. 32
  3. 14
  4. 10

Answer: Option 3

Explanation:

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3:   The long form of periodic table has
Options:
  1. 8 horizontal rows and 7 vertical columns
  2. 7 horizontal rows and 18 vertical columns
  3. 7 horizontal rows and 17 vertical columns
  4. 8 horizontal rows and 8 vertical columns

Answer: Option 2

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4:   An element with atomic number 20 will be placed in which period of the periodic table
Options:
  1. 4
  2. 3
  3. 2
  4. 1

Answer: Option 1

Explanation:

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5:   Ce- 58 is a member of -------------block elements.
Options:
  1. s
  2. d
  3. p
  4. f

Answer: Option 4

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6:   The number of elements in the 5th period of the periodic table are
Options:
  1. 8
  2. 18
  3. 32
  4. 2

Answer: Option 2

Explanation:

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7:   In which of the following groups are there three members of the alkaline earth family of metals
Options:
  1. Al, Sr, Ti
  2. Li, Na, k
  3. Mg, Ba, Ca
  4. Rb, Cs, Fr

Answer: Option 3

Explanation:

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8:   The number of elements in each of the long period in the periodic table is
Options:
  1. 2
  2. 8
  3. 18
  4. 32

Answer: Option 3

Explanation:

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9:   In comparison with alkali metals, the electron affinity of halogens is
Options:
  1. very high
  2. very low
  3. nearly same
  4. exactly same

Answer: Option 1

Explanation:

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10:   Metallic nature and basic nature of the oxides -------------- as we move along a period.
Options:
  1. increases
  2. decreases
  3. both 1 and 2 are possible
  4. none of the above

Answer: Option 2

Explanation:

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