EASY
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All group elements are soft metals.
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Important Questions on The p-Block Elements-Group 13 (Boron Family)
HARD
Choose the correct stability order of group elements in their oxidation state.
EASY
The correct statements among I to III regrading group 13 element oxides are,
(I) Boron trioxide is acidic.
(II) Oxides of aluminum and gallium are amphoteric.
(III) Oxides of indium and thallium are basic.
MEDIUM
What is the atomicity of aluminium phosphate?
MEDIUM
Sodium borohydride upon treatment with iodine produces a Lewis acid which on heating with ammonia produces a cyclic compound and a colorless gas and are
EASY
The increasing order of atomic radii of the following group elements is
MEDIUM
The order of acidic strength of boron trihalides
EASY
The alloy used in the construction of aircrafts is:
MEDIUM
The tendency of in to form a -bond with boron follows the order
MEDIUM
The stability of +1 oxidation state among and increases in the sequence:
EASY
A group 13 element reacts with chlorine gas to produce a compound is electron deficient and easily reacts with adduct; however, does not dimerize. X is:
MEDIUM
When metal is treated with , a white gelatinous precipitate is obtained, which is soluble in excess of . Compound when heated strongly gives an oxide which is used in chromatography as an adsorbent. The metal is
HARD
Which one of the following elements will remain as liquid inside pure boiling water?
EASY
Given below are two statements:
Statement I: Boron is extremely hard indicating its high lattice energy.
Statement II: Boron has highest melting and boiling point compared to its other group members.
In the light of the above statements, choose the most appropriate answer from the options given below
EASY
The metal that has very low melting point and its periodic position is closer to a metalloid is
HARD
Why thallium have positive standard reduction potential while other elements in group 13 have negative reduction potential?
EASY
Which one is a non-metal in group ?
HARD
Order of standard reduction potential of group 13?
HARD
Write a short note on Electrical conductivity of group 13 elements.
EASY
Give reason why: Aluminium wire is used to make transmission cables.
EASY
Amongst the following, which metal exist in liquid state during summer?
