Chemistry Questions and Answers

Practice Mode
Showing 10 of 71 questions
Q21
The ore which is found in abundance in India is
  • A monazite
  • B fluorspar
  • C bauxite
  • D magnetite
Answer: Option A
Q22
The inherited traits of an organism are controlled by
  • A RNA molecules
  • B nucleotides
  • C DNA molecules
  • D enzymes
Answer: Option C
Q23
The heat energy produced when the human body metabolises 1 gram of fat is
  • A 30 KJ
  • B 1 KJ
  • C 39 KJ
  • D 29 KJ
Answer: Option C
Q24
What are the number of moles of CO2 which contains 16 g of oxygen?
  • A 0.5 mole
  • B 0.2 mole
  • C 0.4 mole
  • D 0.25 mole
Answer: Option A
Q25
The main use of salt in the diet is to
  • A make the taste of food better
  • B produce in small amounts the hydrochloric acid required for the digestion of food
  • C ease the process of cooking
  • D increase the solubility of food particles in water
Answer: Option B
Q26
The monomer of polythene is
  • A vinyl chloride
  • B ethylene
  • C ethyl alcohol
  • D None of the above
Answer: Option B
Q27
 The luster of a metal is due to
  • A its high density
  • B its high polishing
  • C its chemical inertness
  • D presence of free electrons
Answer: Option D
Q28
The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is
  • A 1.568 x 103
  • B 6.023 x 1019
  • C 4.84 x 1017
  • D 6.023 x 1023
Answer: Option B
Q29
The most malleable metal is
  • A platinum
  • B silver
  • C iron
  • D gold
Answer: Option D
Q30
The oil used in the froth floatation process is
  • A coconut oil
  • B olive oil
  • C kerosene oil
  • D pine oil
Answer: Option D

📚 More from General Knowledge

← All Topics 🎯 Practice ⏱️ Take Test 🔍 Search
General Knowledge
Back to General Knowledge
Other Subjects
Questions and Answers for Competitive Exams Various Entrance Test