Practice Chemistry GS Questions and Answers

• Anesthesia which is administered during the surgeries in the hospitals is a mixture of which of the following gases?
• The word “acid” comes from a ________ word.
• Bleaching powder is represented as ______.
• Which of the following relation is correct?
• Which of the following statement regarding Rutherford nuclear model is NOT correct?
• The chemical name of ______ is sodium hydrogen carbonate.
• Alkali metals have ______. I. low melting points II. low densities
• Which acid is found in vinegar?
• Which of the following is correct regarding isobars? I. They have different atomic numbers II. The have same mass numbers
• What is the colour of the outer zone of complete combustion of candle flame?
• Modern periodic table has ______ groups and ______ periods.
• Which of the following statement is/are true? I. Metal oxides are acidic in nature II. Non-metallic oxides are basic in nature
• Which of the following statement is/are true? I. Atomic radius increases in moving from left to right along a period. II. Atomic size increases down the ...
• What is the common name of sodium carbonate?
• Atomic number =
• Which of the following cannot be cut by a knife?
• Which of the following pair of element – atomicity is correct? I. Helium – monoatomic II. Oxygen – triatomic
• The insecticide gammexane is chemically known as:
• The percentage of nitrogen in urea is :
• 100 gram of ice at 0°C is mixed with 100 gram of water at 80°C. What will be the final temperature of the mixture ?
• Absolute alcohol is prepared from rectified spirit by using the following process :
• Which of the following elements is a member of the actinoid series?
• How many planets are terrestrial planets?
• Which metal remains liquid at room temperature?
• Aromatic hydrocarbons contain at least how many benzene rings in their molecules?
• The product of the equivalent weight and valency of an element equals its ______.
• Which substance is a multibranched polysaccharide of glucose used for energy storage in animals and fungi?
• What does Mohs scale measure?
• Which of the following is an example of a colloidal solution?
• How can a mixture of sand and salt be separated?
• The process of converting a solid directly into its vapor is called:
• What is the common characteristic of elements in the same group of the periodic table?
• What happens when one s orbital and one p orbital hybridize?
• The atomic bomb is based on which principle?
• Which is used to treat indigestion?
• What does a catalyst do in a reaction?
• Why do metals conduct electricity?
• On a clean glass plate, a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because:
• The (O-H) bond in CH3OH is which type of bond?
• Adding which substance gives a blue color to glass?