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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Match the radicals in List I with their correct names from List II. List I List II 1. NONO31- A: Bisulphite F: Sulphate 2. HSOHSO41- B: Phosphate G: Nitrate 3. SOSO42- C: Carbonate H: Phosphite - Chemistry

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प्रश्न

Match the radicals in List I with their correct names from List II.

List I List II
1. `"NO"_3^(1-)` A: Bisulphite F: Sulphate
2. `"HSO"_4^(1-)` B: Phosphate G: Nitrate
3. `"SO"_4^(2-)` C: Carbonate H: Phosphite
4. `"PO"_4^(3-)` D: Nitrite I: Sulpite
5. `"HCO"_3^(1-)` E: Bicarbonate J: Bisulphate
जोड़ियाँ मिलाइएँ

उत्तर

List I List II
1. `"NO"_3^(1-)` D: Nitrite
2. `"HSO"_4^(1-)` J: Bisulphate
3. `"SO"_4^(2-)` F: Sulphate
4. `"PO"_4^(3-)` B: Phosphate
5. `"HCO"_3^(1-)` E: Bicarbonate
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अध्याय 4: Atomic Structure - Objective Type Questions

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विराफ जे दलाल New Simplified Middle School Chemistry [English] Class 7
अध्याय 4 Atomic Structure
Objective Type Questions | Q 3

संबंधित प्रश्न

Write the symbols and valencies of the following radicals:

  1. Magnesium ion 
  2. Ammonium
  3. Carbonate
  4. Nitrate
  5. Oxide 
  6. Bisulphate
  7. Aluminium ion

Write the names of `"ZnCl"_2 ` compounds :


Define ‘formula mass’ of a compound.


An element X has a valency of 2. Write the simplest formula for bromide of the element.


The valencies (or charges) of some of the ions are given below :

Ion            Valency        Ion                Valency                        (Charge)                             (Charge)

Sodium ion       1+      Nitrate ion            1–  
Copper ion       2+       Sulphide ion         2–

Using this information, write down the formulae of :

  1. Sodium sulphide
  2. Copper nitrate

A particle X has 17 protons, 18 neutrons and 18 electrons. This particle is most likely to be :


Give example.

Trivalent basic radicals


What do you understand by the following terms?

Acid radical 


Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.

Potassium manganate


Match the names of ions and radicals from 1 to 10 with their correct answer from A to Q.

Column A Column B
1. Hypochlorite A: Hg2+
2. Permanganate B: \[\ce{MnO_4^1-}\]
3. Plumbous C: Sn4+
4. Zincate D: Pb2+
5. Nitride E: Sn2+
6. Mercuric F: Pb4+
7. Stannic G: \[\ce{SO_3^2-}\]
8. Nitrite H: N3-
9. Sulphite I: \[\ce{NO_2^1-}\]
10. Dichromate J: \[\ce{MnO_4^2-}\]
  K: Hg1+
L: \[\ce{SO_4^2-}\]
M: CIO1-
N: \[\ce{ZnO_2^2-}\]
O: \[\ce{Cr_2O_7^2-}\]
P: \[\ce{CrO_4^2-}\]
Q: \[\ce{ClO_3^1-}\]

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