Q16 of 59 Page 30

In the following questions two or more options may be correct.

Which of the following sequences contain atomic numbers of only representative elements?


3 and 87 belongs to group 1, 33 belongs to group 15 and 53 belongs to group 17.

9 and 35 belongs to group 17, 51 to group 15 and 88 to group 2.

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14

In the following questions two or more options may be correct.

Which of the following elements can show covalency greater than 4?


 15

In the following questions two or more options may be correct.

Those elements impart colour to the flame on heating in it, the atoms of which require low energy for the ionisation (i.e., absorb energy in the visible region of spectrum). The elements of which of the following groups will impart colour to the flame?


 17

In the following questions two or more options may be correct.

Which of the following elements will gain one electron more readily in comparison to other elements of their group?


 18

In the following questions two or more options may be correct.

Which of the following statements are correct?