Metallic oxides are

  • basic in nature
  • acidic in nature
  • slightly acidic in nature
  • neutral

Boron is a

  • metal
  • metalloid
  • non-metal
  • gas

As we move across the period the basic character of oxides

  • increases
  • remains same
  • decreases
  • becomes zero

The sodium metal is soft due to

  • weak metallic bond
  • strong metallic bond
  • large size
  • small size

Elements which have properties of metals and non-metals are

  • amorphous
  • crystalline
  • metalloids
  • metals

As the size of the atom increases down the group, the electro positivity

  • increases
  • decreases
  • remains same
  • none of above

Bromine is a non-metal in

  • solid state
  • liquid state
  • gaseous state
  • plasma state

The oxide of aluminum is

  • acidic
  • basic
  • neutral
  • amphoteric

Metal that difficult to oxidize are called

  • weak metals
  • strong metals
  • noble metals
  • ionic metals

On contact with oxygen, Rubidium forms

  • normal oxide
  • per oxide
  • super oxide
  • trioxide

As compare to beryllium, the magnesium is

  • large in size only
  • more electropositive only
  • less electropositive
  • large in size and more electropositive

Halogens react with metals to form

  • Halides
  • oxides
  • halogen compounds
  • hydrogenated compounds

The most acidic among the following is

  • HF
  • HCl
  • HBr
  • HI

The tendency of a metal to lose electron is called

  • electronegativity
  • electro positivity
  • electroplating
  • electrolysis

Non-metals are poor conductors of

  • heat only
  • electricity only
  • temperature
  • heat and electricity

As we move across the period the electronegativity

  • decreases
  • increases
  • remains same
  • becomes zero

As we move across the period from left to right, the reactivity of metals with oxygen

  • decreases
  • increases
  • remains same
  • zero
The most metallic among the following is
  • Na
  • Al
  • K
  • Bi
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