Practice Chemistry Questions and Answers

• Which substance is also known as 'Oil of Vitriol'?
• Which sodium compound is the most popular additive in sauces, salad dressings, and beverages for its preservative action?
• Which chemical compound is used in the indelible ink for elections?
• Which gas turns into a liquid at the lowest temperature?
• Gunpowder consists of a mixture of:
• Which of the following is the sweetest sugar?
• Which substance is used to dissolve noble metals?
• An element has an atomic number of 17 and a mass number of 36. How many neutrons are in its nucleus?
• The first nuclear reactor made in India is named:
• Itai-Itai disease is caused by exposure to which metal?
• Why do metals conduct electricity?
• Sphalerite is an ore/mineral of -
• Which drug is used to cure Hypertension?
• Which of the following glands is a source of the enzyme Ptyalin?
• Manganite is an ore/mineral of -
• Pentane has _____ structural isomers.
• Which of the following statement is CORRECT?
• What is the main constituent of biogas?
• Which planet is known as the "Red Planet"?
• Which element is used in pencil leads?
• Which of the following elements is a noble gas?
• The process of conversion of a solid directly into a gas is known as:
• The chemical name of 'baking soda' is:
• Which gas is most abundant in the Earth's atmosphere?
• Pepperonil, ethyl acetate, butyraldehyde and nitrate are some common adulterants used in ____________
• Which element is known as the 'King of Chemicals.
• Which gas is most abundant in the Earth's atmosphere.
• What is the boiling point of water at sea level.
• Which of the following elements has the highest electronegativity.
• Aqua regia, which can dissolve gold, is a freshly prepared mixture of concentrated hydrochloric acid and concentrated ______.
• The slow corrosion of iron in the presence of moist air is known as:
• Oil and water can form a stable dispersion with the help of a substance commonly called a(n):
• The combining power of an element is called its:
• Ultra-purification of metals is achieved using:
• The pH value of an acidic solution is:
• ______ is defined as the number of moles of solute per litre of solution.
• Which of the following is NOT a physical change?
• Which fossil fuel is formed under earth by the decomposition of vegetable matter lying under water by anaerobic bacteria in the absence of oxygen?
• Which device converts sound waves to electrical signals?
• When acid reacts with metal carbonate, _______ is/are formed.