Advertisements
Advertisements
प्रश्न
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
Na1+ Cl1-
Advertisements
उत्तर
Na1+ Cl1-
Steps
Formula = NaCl
संबंधित प्रश्न
Write true or false
Milk is an emulsion.
Give two symbols which have been derived from the "English names" of the elements.
An atom of an element is denoted by a “symbol”. Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Hydrogen by ‘H’
Match the symbols of – radicals – with their correct combining power or capacity, (valency).
(a) OH
(b) So4
(c) No3
(d) Co3
Combining power or capacity – A : 3; B : 2; C : 1. (negative valencies)
Match the formulas of the following gases with their correct names :
Gases - (a) H2 (b) N2 (c) O2 (d) Cl2 (e) HCI (f) NH3 (g) CO (h) CO2 (i) SO2 (j) NO (k) NO2.
Names:
(1) Ammonia (2) Nitrogen Dioxide (3) Oxygen (4) Hydrogen (5) Nitrogen (6) Chlorine (7) Carbon Monoxide (8) Sulphur Dioxide (9) Nitrogen Monoxide (10) Carbon Dioxide (11) Hydrogen Chloride
State the type of element for the following:
Copper
Give the formula of the following acid:
Hydrochloric
State the valency of the following metallic element and write symbol with the valency
Zinc
Fill in the blank with the correct word from the options given below:
A symbol represents a short form of a / an ________.
______ of some elements are derived from Latin or Greek names of the elements.
