MCQsXI Chemistry

100 multiple-choice questions for XI Chemistry, with the correct answers highlighted in Strik **:

Question	Option A	Option B	Option C	Option D
1. Which of the following elements is a noble gas?	Hydrogen	Nitrogen	Neon **	Carbon
2. Which of the following is an alkali metal?	Sodium **	Copper	Iron	Zinc
3. What is the chemical symbol for gold?	Au **	Ag	Al	Fe
4. Which of the following is a halogen?	Chlorine **	Oxygen	Helium	Fluorine
5. What is the atomic number of carbon?	6 **	12	14	8
6. What is the formula for sodium chloride?	NaCl **	H2O	CO2	NH3
7. Which of the following elements is a metalloid?	Silicon **	Oxygen	Nitrogen	Aluminum
8. What is the chemical formula for water?	H2O **	CO2	NaCl	NH3
9. Which of the following is a transition metal?	Iron **	Carbon	Helium	Oxygen
10. What is the atomic symbol for potassium?	K **	P	Ca	Mg
11. Which of the following is an alkaline earth metal?	Calcium **	Oxygen	Nitrogen	Aluminum
12. What is the atomic number of oxygen?	8 **	16	6	12
13. What is the chemical formula for carbon dioxide?	CO2 **	H2O	NaCl	NH3
14. Which of the following elements is a nonmetal?	Oxygen **	Sodium	Copper	Iron
15. Which of the following is an isotope of hydrogen?	Deuterium **	Oxygen-16	Carbon-12	Nitrogen-14
16. What is the atomic symbol for helium?	He **	Ne	Ar	Kr
17. Which of the following is a lanthanide?	Europium **	Nickel	Aluminum	Zinc
18. What is the atomic number of nitrogen?	7 **	14	8	16
19. What is the chemical formula for ammonia?	NH3 **	H2O	CO2	NaCl
20. Which of the following elements is a noble gas?	Argon **	Hydrogen	Carbon	Nitrogen
21. Which of the following is a halogen?	Bromine **	Iron	Sodium	Calcium
22. What is the atomic number of hydrogen?	1 **	2	3	4
23. What is the chemical formula for carbon monoxide?	CO **	H2O	NaCl	NH3
24. Which of the following elements is a metalloid?	Arsenic **	Oxygen	Nitrogen	Aluminum
25. Which of the following is an alkaline earth metal?	Magnesium **	Nitrogen	Oxygen	Aluminum
26. What is the atomic number of sodium?	11 **	12	6	8
27. What is the chemical symbol for silver?	Ag **	Au	Al	Fe
28. Which of the following is a transition metal?	Copper **	Carbon	Helium	Oxygen
29. What is the atomic symbol for calcium?	Ca **	K	P	Mg
30. Which of the following is an alkali metal?	Potassium **	Copper	Iron	Zinc
31. What is the atomic number of carbon?	6 **	16	8	12
32. What is the chemical formula for table salt?	NaCl **	H2O	CO2	NH3
33. Which of the following elements is a nonmetal?	Sulfur **	Sodium	Copper	Iron
34. Which of the following is an isotope of oxygen?	Oxygen-18 **	Hydrogen-1	Carbon-14	Nitrogen-15
35. What is the atomic symbol for neon?	Ne **	He	Ar	Kr
36. Which of the following is a lanthanide?	Gadolinium **	Nickel	Aluminum	Zinc
37. What is the atomic number of oxygen?	8 **	14	6	16
38. What is the chemical formula for methane?	CH4 **	H2O	CO2	NaCl
39. Which of the following elements is a noble gas?	Xenon **	Hydrogen	Nitrogen	Carbon
40. Which of the following is a halogen?	Iodine **	Iron	Sodium	Calcium
41. What is the atomic number of helium?	2 **	10	18	36
42. What is the chemical formula for hydrogen peroxide?	H2O2 **	CO2	NaCl	NH3
43. Which of the following elements is a metalloid?	Antimony **	Oxygen	Nitrogen	Aluminum
44. Which of the following is an alkaline earth metal?	Barium **	Nitrogen	Oxygen	Aluminum
45. What is the atomic number of potassium?	19 **	12	6	8
46. What is the chemical symbol for copper?	Cu **	Ag	Au	Fe
47. Which of the following is a transition metal?	Zinc **	Carbon	Helium	Oxygen
48. What is the atomic symbol for potassium?	K **	Ca	P	Mg
49. Which of the following is an alkali metal?	Rubidium **	Copper	Iron	Zinc
50. What is the atomic number of sulfur?	16 **	14	8	6
51. What is the chemical formula for hydrogen gas?	H2 **	H2O	CO2	NaCl
52. Which of the following elements is a nonmetal?	Phosphorus **	Sodium	Copper	Iron
53. Which of the following is an isotope of carbon?	Carbon-13 **	Oxygen-16	Hydrogen-1	Nitrogen-14
54. What is the atomic symbol for argon?	Ar **	Ne	He	Kr
55. Which of the following is a lanthanide?	Lutetium **	Nickel	Aluminum	Zinc
56. What is the atomic number of phosphorus?	15 **	14	8	6
57. What is the chemical formula for carbon disulfide?	CS2 **	H2O	NaCl	NH3
58. Which of the following elements is a noble gas?	Krypton **	Hydrogen	Nitrogen	Carbon
59. Which of the following is a halogen?	Chlorine **	Iron	Sodium	Calcium
60. What is the atomic number of neon?	10 **	12	6	8
61. What is the chemical formula for carbon tetrachloride?	CCl4 **	H2O	NaCl	NH3
62. Which of the following elements is a metalloid?	Boron **	Oxygen	Nitrogen	Aluminum
63. Which of the following is an alkaline earth metal?	Strontium **	Nitrogen	Oxygen	Aluminum
64. What is the atomic number of iron?	26 **	12	6	8
65. What is the chemical symbol for mercury?	Hg **	Au	Ag	Fe
66. Which of the following is a transition metal?	Nickel **	Carbon	Helium	Oxygen
67. What is the atomic symbol for sodium?	Na **	K	Ca	Mg
68. Which of the following is an alkali metal?	Lithium **	Copper	Iron	Zinc
69. What is the atomic number of silicon?	14 **	16	8	6
70. What is the chemical formula for nitric acid?	HNO3 **	H2O	CO2	NaCl
71. Which of the following elements is a nonmetal?	Bromine **	Sodium	Copper	Iron
72. Which of the following is an isotope of nitrogen?	Nitrogen-15 **	Oxygen-16	Hydrogen-1	Carbon-14
73. What is the atomic symbol for krypton?	Kr **	Ne	Ar	He
74. Which of the following is a lanthanide?	Cerium **	Nickel	Aluminum	Zinc
75. What is the atomic number of fluorine?	9 **	10	11	12
76. What is the chemical formula for hydrogen chloride?	HCl **	H2O	CO2	NaCl
77. Which of the following elements is a noble gas?	Radon **	Hydrogen	Nitrogen	Carbon
78. Which of the following is a halogen?	Fluorine **	Iron	Sodium	Calcium
79. What is the atomic number of argon?	18 **	12	6	8
80. What is the chemical formula for phosphoric acid?	H3PO4 **	H2O	CO2	NaCl
81. Which of the following elements is a metalloid?	Germanium **	Oxygen	Nitrogen	Aluminum
82. Which of the following is an alkaline earth metal?	Beryllium **	Nitrogen	Oxygen	Aluminum
83. What is the atomic number of copper?	29 **	12	6	8
84. What is the chemical symbol for lead?	Pb **	Au	Ag	Fe
85. Which of the following is a transition metal?	Chromium **	Carbon	Helium	Oxygen
86. What is the atomic symbol for iron?	Fe **	K	Ca	Mg
87. Which of the following is an alkali metal?	Cesium **	Copper	Iron	Zinc
88. What is the atomic number of chlorine?	17 **	16	8	6
89. What is the chemical formula for sulfuric acid?	H2SO4 **	H2O	CO2	NaCl
90. Which of the following elements is a nonmetal?	Iodine **	Sodium	Copper	Iron
91. Which of the following is an isotope of hydrogen?	Tritium **	Oxygen-16	Carbon-14	Nitrogen-14
92. What is the atomic symbol for xenon?	Xe **	Ne	Ar	Kr
93. Which of the following is a lanthanide?	Samarium **	Nickel	Aluminum	Zinc
94. What is the atomic number of phosphorus?	15 **	14	8	6
95. What is the chemical formula for acetic acid?	CH3COOH **	H2O	CO2	NaCl
96. Which of the following elements is a noble gas?	Radon **	Hydrogen	Nitrogen	Carbon
97. Which of the following is a halogen?	Bromine **	Iron	Sodium	Calcium
98. What is the atomic number of xenon?	54 **	12	6	8
99. What is the chemical formula for hydrogen sulfide?	H2S **	H2O	CO2	NaCl
100. Which of the following elements is a metalloid?	Tellurium **	Oxygen	Nitrogen	Aluminum

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