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प्रश्न
Diamond is a hard substance.
पर्याय
Right
Wrong
उत्तर
Diamond is a hard substance- Right
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संबंधित प्रश्न
Fill in the blanks:
Iron is ________ reactive than copper.
Metals are said to be shiny. Why do metals generally appear to be dull? How can their brightness be restored?
Name the metal which is the best conductor of heat and electricity.
Name a non-metal that is used to kill germs in water
Name the metals present in the following alloys
Brass
Fill in the blank
A chemical compound that makes up the striking heads of match sticks is ______
Name one metal which is a liquid at room temperature
What do you understand by the term non-metal?
State the composition of given alloy:
Bronze
Name:
a non-metal which is ductile
Explain how the activity series accounts for each of the following:
reaction with acids
Ankita bought some Glucose Powder. She felt is was adulterated with starch powder. How would she test it?
Give the common name and chemical name of an ore of:
(a) zinc (b) aluminium (c) iron.
Distinguish between the physical properties of metals and non-metals with reference to:
(a) lusture (b) malleability (c) ductility (d) tensile strength (e) sonority (f) conduction of heat and electricity (g) melting and boiling point (h) density.
Select the appropriate option for the following statement:
The element from the halogen family which is most abundant
Select the appropriate option for the following statement:
The element which is noble gas and radioactive in nature.
______ is the only non-metal which conducts electricity.
The non-metal which conducts electric current is
Pencil lead contains
Reason out
Sulphur is used in the vulcanization of rubber.
