1.
Which element is used in the production of glass?
2.
What is the most abundant element in the universe?
3.
Which gas is known as 'laughing gas'?
4.
Which element is known as the 'building block of life'?
5.
What is the common name for H2O2?
6.
What is the atomic number of helium?
7.
What is the atomic number of oxygen?
8.
Which element is used to disinfect drinking water?
9.
Which element is a good conductor of electricity?
10.
Which gas is used in balloons to make them float?
11.
Which gas is used in soft drinks?
12.
What is the chemical name for rust?
13.
What is the chemical formula for hydrochloric acid?
14.
Which gas is known as laughing gas?
15.
What is the chemical formula for baking soda?
16.
What is the chemical formula for ammonia?
17.
Which element is found in all organic compounds?
18.
What is the atomic number of neon?
19.
Which element is known as the 'King of Chemicals'?
20.
Which element is found in all proteins?
21.
Which metal is the best conductor of electricity?
22.
Which gas is produced during photosynthesis?
23.
What is the chemical formula for sulfuric acid?
24.
Which of the following is an alkaline earth metal?
25.
What is the chemical symbol for potassium?
26.
What is the chemical symbol for gold?
27.
What is the atomic number of carbon?
28.
Which element is commonly used in making jewelry?
29.
Which of the following is a non-metal?
30.
Which element is used in making light bulbs?
31.
Which element is the main component of steel?
32.
Which element is known as 'quick silver'?
33.
Which element is used in the production of toothpaste?
34.
What is the chemical symbol for iron?
35.
Which element is used in the manufacture of semiconductors?
36.
Which element is used in thermometers?
37.
Which element is commonly used in light bulb filaments?
38.
What is the atomic number of phosphorus?
39.
What is the chemical formula for ethanol?
40.
What is the chemical formula for table salt?
41.
Which element is the primary component of diamonds?
42.
What is the lightest element?
43.
Which element is known as the 'sun element'?
44.
What is the chemical symbol for lead?
45.
Which metal is commonly used in electrical wiring?
46.
What is the main constituent of biogas?
47.
What is the atomic number of aluminum?
48.
Which element is commonly used in batteries?
49.
Which element is the main component of coal?
50.
What is the chemical formula for table salt?
51.
What is the chemical formula for ozone?
52.
Which gas is commonly known as 'marsh gas'?
53.
What is the chemical symbol for calcium?
54.
What is the most abundant gas in the Earth's atmosphere?
55.
Which gas is produced when an acid reacts with a metal?
56.
Which element is used in making matches?
57.
What is the atomic number of nitrogen?
58.
What is the chemical formula for nitric acid?
59.
What type of bond is formed between sodium and chlorine in sodium chloride?
60.
Which element is used in the production of fertilizers?
61.
What is the pH of pure water?
62.
Which element has the highest melting point?
63.
Which element is used in the production of fireworks?
64.
Which acid is commonly used in car batteries?
65.
Which element is used in the production of bleach?
66.
Which acid is found in vinegar?
67.
What is the chemical formula for table sugar (sucrose)?
68.
Which of the following is a metal?
69.
What is the chemical formula for acetic acid?
70.
What is the chemical symbol for zinc?
71.
What is the chemical formula for sulfur dioxide?
72.
What is the chemical name for quicklime?
73.
What is the atomic number of hydrogen?
74.
What is the chemical formula for carbon dioxide?
75.
What is the chemical formula for methane?
76.
Which gas is produced during the process of respiration?
77.
What is the common name for sodium bicarbonate?
78.
Which element is liquid at room temperature?
79.
Which element is a liquid at room temperature?
80.
What is the chemical symbol for magnesium?
81.
What is the chemical formula for glucose?
82.
Which of the following is a noble gas?
83.
Which element is used in pencils?
84.
What is the common name for calcium carbonate?
85.
Which gas is essential for the process of photosynthesis?
86.
What is the chemical symbol for water?
87.
Which element is used in the production of nuclear energy?
88.
What is the main constituent of natural gas?
89.
What is the chemical symbol for silver?
