🧪 Top 20 Most Repeated MCQs in ETEA Chemistry

 

S.No	Question	Correct Option
1	Which acid is known as "King of Chemicals"?	H₂SO₄
2	The bond angle in methane is:	109.5°
3	Which element has the highest electronegativity?	Fluorine
4	The hybridization of carbon in ethene is:	sp²
5	Haber process is used to manufacture:	Ammonia
6	Which one is a strong electrolyte?	NaCl
7	Oxidation involves:	Loss of electrons
8	The molecular formula of glucose is:	C₆H₁₂O₆
9	Atomic number of potassium is:	19
10	A catalyst:	Speeds up a reaction
11	pH of neutral solution is:	7
12	Which gas is produced in the reaction of metal and acid?	Hydrogen
13	Avogadro’s number is:	6.022 x 10²³
14	The shape of the s-orbital is:	Spherical
15	Which compound is aromatic?	Benzene
16	Basicity of H₃PO₄ is:	3
17	The color of phenolphthalein in base:	Pink
18	The unit of molar mass is:	g/mol
19	Electrolysis of water gives:	H₂ and O₂
20	Functional group of alcohol is:	-OH

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