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प्रश्न
An element which is an essential constituent of all organic compounds belongs to
विकल्प
group 1
group 14
group 15
group 16
उत्तर
group 15
Explanation -
An element which is an essential constituent of all organic compounds belongs to is carbon, it is located in the second period and group number 14 in the periodic table.
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संबंधित प्रश्न
Give two example of group 17 elements.
Which element has the electronic configuration 2, 8, 2?
What is the usual number of valence electrons in the atoms of the last element in a period?
The elements A, B, C and D belong to groups 1, 2, 14 and 17 respectively of the periodic table. Which of the following pairs of elements would produce a covalent bond?
(i) A and D
(ii) C and D
(iii) A and B
(iv) B and C
(v) A and C
Give the symbol and valency of the following element and radical.
Chlorine [Chloride]
Which of the following elements does not lose an electron easily?
A part of modern periodic table is given below. On its basis, answer the following questions:
| Group No. → | 1 | 2 | 13 | 14 | 15 | 16 | 17 | 18 |
| Period ↓ | ||||||||
| 2 | A | B | ||||||
| 3 | E | D | F | C |
Which of the element is a Metalloid?
State the group and period, of the element having three shells with three electrons in valence shell.
An element has 2 electrons in its N shell.
Is it a metal or a non-metal?
Give reason for the following:
Inert gases do not form ion.
