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What is extracted from Bauxite ?

  • Mica
  • Aluminium
  • Copper
  • Tin

Answer: Option B

Similar Questions :

1. The isotope atoms differ in ?

  • number of neutrons
  • atomic number
  • number of electrons
  • atomic weight

Answer: Option A

Explanation:

Important to note that isotope atoms have same atomic number.

2. Identify the wrong statement in the following

  • Atomic radius of the elements increases as one moves down the first group of the periodic table
  • Atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the
  • Amongst isoelectronic species, smaller the positive charge on the cation, smaller is the ionic radius
  • Amongst isoelectronic species, greater the negative charge on the anion, larger is the ionic radius

Answer: Option C

3. The aqueous solution of which acids is called Vinegar ?

  • Acetic acid
  • Hydrochloric acid
  • Citric acid
  • Oxalic acid

Answer: Option A

4. Biogas majorly contains ?

  • Ethane
  • Methane
  • Hydrogen
  • CO

Answer: Option B

5. Conduction band electrons have more mobility than holes because they are

  • experience collision more frequently
  • experience collision less frequently
  • have negative charge
  • need less energy to move them

Answer: Option B

Read more from - Chemistry Questions Answers
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