JEE Main Chemistry Practice Set 1
Original JEE Main chemistry questions that focus on basics, reactions, and periodic trends.
JEE Main
Exam Pattern & Rules
Total Questions
90
Total Marks
300
Duration
3 hours
Marking
+4 correct, -1 incorrect, 0 unattempted
Negative Marking: Yes, in Section A and Section B
Note: Paper contains 90 questions (30 per subject), with 75 attempted as per the current exam attempt structure.
Practice Set Details
Questions
6
Estimated Time
18 minutes
JEE Main Chemistry Practice Set 1: all 6 questions with answers
Try each question first, then open “Show answer” to check the correct option and explanation.
Q1.Which gas is released when zinc reacts with dilute hydrochloric acid?
- A.Oxygen
- B.Hydrogen
- C.Carbon dioxide
- D.Nitrogen
Show answer
Correct answer: B. Hydrogen
Zinc and dilute hydrochloric acid produce hydrogen gas.
Q2.What is the pH of a neutral aqueous solution at 25°C?
- A.7
- B.1
- C.14
- D.4
Show answer
Correct answer: A. 7
Neutral water at 25°C has pH 7.
Q3.Which element has the electronic configuration [Ne] 3s² 3p¹?
- A.Aluminium
- B.Magnesium
- C.Silicon
- D.Phosphorus
Show answer
Correct answer: A. Aluminium
Aluminium has configuration [Ne] 3s² 3p¹.
Q4.What is the functional group in ethanol?
- A.Carboxyl
- B.Amine
- C.Hydroxyl
- D.Aldehyde
Show answer
Correct answer: C. Hydroxyl
Ethanol contains a hydroxyl (–OH) group.
Q5.Which of these is a strong acid?
- A.Acetic acid
- B.Hydrochloric acid
- C.Ammonia
- D.Sodium hydroxide
Show answer
Correct answer: B. Hydrochloric acid
Hydrochloric acid is a strong acid.
Q6.Which of the following is an alkali metal?
- A.Calcium
- B.Lithium
- C.Aluminium
- D.Copper
Show answer
Correct answer: B. Lithium
Lithium is an alkali metal in group 1.