TRB MODEL QUESTIONS FOR CHEMISTRY
| 71. |
The elements with the highest electronegative character is |
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- A. Halogens
- B. Alkali metals
- C. Transition elements
- D. Alkaline earth metals
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| 72. |
Number of amino acids that can be synthesized by the human body is |
| |
|
| 73. |
The atomic number of elements were discovered by |
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- A. Lother Meyer
- B. Newland
- C. Mendeleev
- D. Mosley
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| 74. |
The chemical name for the compound having formula NaoH is |
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- A. Sodium hydroxide
- B. Caustic potash
- C. Soda ash
- D. Caustic soda
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| 75. |
In the periodic table, the elements present in the groups from 3 to 12 are known as |
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- A. s–block
- B. d–block
- C. p–block
- D. f–block
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