Practice/Question bank/JEE Main

JEE Main practice questions

NTA-style Physics, Chemistry and Maths MCQs with solutions. 2,688 questions in the bank.

1. 1The correct bond angle order of CCl_4, SiCl_4, GeCl_4 and SnCl_4 isChemistry· Inorganic Chemistry· Easy
2. 2Among the following groupings which represents the collection of isoelectronic species ?Chemistry· Inorganic Chemistry· Moderate
3. 3The quantum numbers of four electrons (e1 to e4) are given below: ------------------------------------- n l m s ------- ------- -------…Chemistry· Physical Chemistry· Moderate
4. 4In which one of the following species the central atom has the type of hybridization which is not the same as that present in the other…Chemistry· Inorganic Chemistry· Tough
5. 5For a real gas (van der temperature and low pressure, the pressure may be ($V_{m}$⇒ molar volume)Chemistry· Physical Chemistry· Moderate
6. 6The structure given below is known asChemistry· Organic Chemistry· Tough· figure
7. 7Which of the following can possibly be used as analgesic without causing addiction and any modificationChemistry· Organic Chemistry· Tough
8. 8Aspirin is chemicallyChemistry· Organic Chemistry· Moderate· figure
9. 9Further growth of cancerous cells in the body is arrested byChemistry· Organic Chemistry· Moderate
10. 10Which one of the following is known as broad spectrum antibiotics?Chemistry· Organic Chemistry· Easy
11. 11Asthma patient use a mixture of..... for respirationChemistry· Organic Chemistry· Moderate
12. 12Electrolysis of fused sodium hydride liberate hydrogen at theChemistry· Inorganic Chemistry· Moderate
13. 13The pH of $D_{2}O$ and $H_{2}O$ at 298 K isChemistry· Inorganic Chemistry· Easy
14. 14When zeolite Hydrated sodium aluminium silicate) is treated with hard water the sodium ions are exchanged withChemistry· Inorganic Chemistry· Moderate
15. 15Hydrogen molecule differs from chlorine molecule in the following respectChemistry· Inorganic Chemistry· Easy
16. 16Value of Vander Waal's constants a and b for a gas depends uponChemistry· Physical Chemistry· Tough
17. 17$H_{2}O_{2}$is always stored in black bottles becauseChemistry· Inorganic Chemistry· Easy
18. 1820 volume $H_{2}O$ solution has a strength of about in gm/mlChemistry· Inorganic Chemistry· Tough
19. 19$1ml\text{ of }H_{2}O_{2}$solution gives$10ml\text{ of }O_{2}$ at NTP. It isChemistry· Inorganic Chemistry· Easy
20. 20At 400 K, the root mean square (rms) speed of a gas X (molecular weight = 40) is equal to the most probable speed of gas Y at 60 K. The…Chemistry· Inorganic Chemistry· Moderate
21. 21Two flask A & B have capacity of 1 litre and 2 litre respectively. Each of them contain 1 mole of a gas. The temperature of the flask are…Chemistry· Physical Chemistry· Tough
22. 22Two vessels whose volumes are in the ratio 2: 1 contain nitrogen and oxygen at 2500 mm and 1000 mm pressures respectively when they are…Chemistry· Physical Chemistry· Easy
23. 23An unknown gaseous hydrocarbon and oxygen gas are mixed in volume ratio 1: 7 and exploded. The resulting mixture upon cooling occupied a…Chemistry· Physical Chemistry· Moderate
24. 24The compressibility factor of a gas is less than unity at 273 K and $V_{m}$ = 22.4 L therefore,Chemistry· Physical Chemistry· Moderate