Chemistry-
General
Easy
Question
Graphite is used as lubricant due to
- The slippery nature
- Its giant structure
- High refractive index
- High IP value of carbon
The correct answer is: The slippery nature
Related Questions to study
Chemistry-
The alkaline earth metal which does not directly combine with hydrogen is:
The alkaline earth metal which does not directly combine with hydrogen is:
Chemistry-General
Chemistry-
Both alkaline earth metals and alkali metals are s-block elements. They resemble with each other in many respects but still there are certain dissimilarities in their properties on account of different number of electrons in the valence shell, smaller atomic radii, higher ionisation potential, higher electronegativity, etc.
Like lithium, beryllium also differs from rest of the alkaline earth metals on account of its small atomic size and high electronegativity. Be2+ ion is very small and exerts a high polarising effect on any anion associated with it.
Which is least thermally stable?
Both alkaline earth metals and alkali metals are s-block elements. They resemble with each other in many respects but still there are certain dissimilarities in their properties on account of different number of electrons in the valence shell, smaller atomic radii, higher ionisation potential, higher electronegativity, etc.
Like lithium, beryllium also differs from rest of the alkaline earth metals on account of its small atomic size and high electronegativity. Be2+ ion is very small and exerts a high polarising effect on any anion associated with it.
Which is least thermally stable?
Chemistry-General
Chemistry-
Aqua regia is a mixture of
Aqua regia is a mixture of
Chemistry-General
Chemistry-
Which of the following metals is protected from oxygen and mositure by immersing in kerosene oil?
Which of the following metals is protected from oxygen and mositure by immersing in kerosene oil?
Chemistry-General
Chemistry-
Beakers A, B and C contain zinc sulphate, silver nitrate and iron (II) sulphate solutions respectively. Copper pieces are added to each beaker. blue colour will appear in case of
Beakers A, B and C contain zinc sulphate, silver nitrate and iron (II) sulphate solutions respectively. Copper pieces are added to each beaker. blue colour will appear in case of
Chemistry-General
Chemistry-
Which of the following pairs will give displacement reactions
Which of the following pairs will give displacement reactions
Chemistry-General
Chemistry-
Zone refining is used for the :
Zone refining is used for the :
Chemistry-General
Chemistry-
A process employed for the concentration of sulphide ore is :
A process employed for the concentration of sulphide ore is :
Chemistry-General
Chemistry-
The process of calcination is used for
The process of calcination is used for
Chemistry-General
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Rust is hydrated
Rust is hydrated
Chemistry-General
Chemistry-
Stainless steel is addition to iron contains
Stainless steel is addition to iron contains
Chemistry-General
Chemistry-
When a sample of copper containing iron as impurity is purified by electrolysis, the appropriate electrodes are: Cathode Anode
When a sample of copper containing iron as impurity is purified by electrolysis, the appropriate electrodes are: Cathode Anode
Chemistry-General
Chemistry-
Parts of aeroplanes are generally made from
Parts of aeroplanes are generally made from
Chemistry-General
Chemistry-
Which is expected to conductor of electricity?
Which is expected to conductor of electricity?
Chemistry-General
Chemistry-
Which gives carbon with conc. H2SO4?
Which gives carbon with conc. H2SO4?
Chemistry-General
