The total number of elements is

  • 116
  • 92
  • 140
  • 98

Sodium and chlorine react together to form

  • sodium chloride
  • sodium oxide
  • sodium carbonate
  • sodium nitrate

Element which is non metal and is found on right side of periodic table is

  • argon
  • sodium
  • neon
  • both a and b

The first most abundant element found in universe is

  • hydrogen
  • oxygen
  • nitrogen
  • helium

The number of natural elements is

  • 116
  • 92
  • 140
  • 98

Stars are made up of two most abundant elements in universe namely

  • hydrogen and helium
  • oxygen and hydrogen
  • hydrogen and carbon dioxide
  • nitrogen and oxygen

In a periodic table, the row of elements is called

  • sets
  • group
  • column
  • periods

If 1g of hydrogen is mixed with 8g of oxygen, the produced water will be

  • 9g
  • 7g
  • 8g
  • 1g

'Ag' is the symbol of element

  • silver
  • gold
  • iron
  • copper

Solid 'carbon dioxide' crystals make

  • fizzy drinks
  • dry ice
  • airships fly
  • balloons risen

Gold, silver, copper and aluminum are

  • metals
  • non metals
  • alkalis
  • metalloids

A chemical reaction can be explained and presented in the form of

  • chemical symbol
  • chemical formula
  • chemical properties
  • word equation

Metals are good conductors of heat and electricity. They have high

  • densities
  • melting point
  • boiling point
  • all of them

Helium is considered to be the abundantly found gas, ranking in number

  • 1
  • 2
  • 3
  • 4

The name of element may differ in languages but it has same

  • chemical symbol
  • chemical formula
  • chemical properties
  • occurrence

''Water' is a

  • element
  • compound
  • mixture
  • solute

Chemical name for iron is

  • Ferrum
  • Natrium
  • Argentum
  • Wolfram

Sodium is found in periodic table on

  • left side
  • right side
  • middle
  • upside

Elements may be classified as

  • metals
  • non metals
  • metalloids
  • both a and b

A ductile element which is a good conductor of electricity is called

  • copper
  • rubber
  • glass
  • sand
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