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प्रश्न
Give example.
Bivalent acidic radicals
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उत्तर
S2- ,O2- ,Se2-
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संबंधित प्रश्न
Name the following radicals :
HC03
Name the following radicals :
Cr2072
Write the names of `"HgO"` compounds :
Magnesium and oxygen combine in the ratio of 3 : 2 by mass to form magnesium oxide. What mass of oxygen gas would be required to react completely with 24 g of magnesium ?
Define ‘formula mass’ of a compound.
State whether the following statements are true or false:
A sodium ion has positive charge because it has more protons than a neutral atom.
State whether the following statements are true or false :
A chloride ion has negative charge because it has more electrons than a neutral atom.
Name the particle which has 18 electrons, 18 neutrons and 17 protons in it.
Explain the formation of (i) sodium ion, and (ii) chloride ion, from their respective atoms giving the number of protons and number of electrons in each one of them. What is the reason for positive charge on a sodium ion and a negative charge on a chloride ion ?
Give example.
Composite radicals
Write symbols of the following elements and the radicals obtained from them and indicate the charge on the radicals.
Mercury, potassium, nitrogen, copper, sulphur, carbon, chlorine, oxygen
What do you understand by the following terms?
Acid radical
Choose the correct answer from the options given below.
The number of carbon atoms in a hydrogen carbonate radical is
State if the following element or radical is divalent?
Ammonium
State if the following element or radical is divalent?
Chromium
State if the following element or radical is divalent?
Dichromate
State if the following element or radical is divalent?
Permanganate
Atoms that carry positive or negative charges are called ______.
