Question

(b)
Choose the correct answer from the options given below:
(1) The organic compound having a double carbon-carbon covalent bond:
A. C3H4
B. C3H6
C. C₃H8
D. CH10
(ii) The polar covalent compound in gaseous state that doesn't conduct
electricity :
A. NH3
B. CHA
C. KC
D. CCIA
(iii) The element having highest electron affinity in the following is :
A. Sodium
B. Chlorine
C. Fluorine
D. Bromine
(iv) To decrease the pH value of the neutral solution we must add :
A. An acid
B. An alkali
C. An acid salt
D. A salt
(v) Identify the metallic oxide which is amphoteric in nature :
A. Calcium oxide
B. Barium oxide
C. Zinc oxide
D. Copper (11) oxide​

Answer 1

Answer:

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Explanation: