मराठी

State If the Following Element Or Radical is Divalent? Ammonium

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प्रश्न

State if the following element or radical is divalent?

Ammonium

एका वाक्यात उत्तर
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उत्तर

Ammonium element or radical is not divalent.

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पाठ 1: The Language of Chemistry - For Additional High Order Thinking Questions [पृष्ठ १४]

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विराफ जे. दलाल Simplified ICSE Chemistry [English] Class 9
पाठ 1 The Language of Chemistry
For Additional High Order Thinking Questions | Q 2. 5. (c) | पृष्ठ १४

संबंधित प्रश्‍न

Calculate the number of aluminium ions present in 0.051 g of aluminium oxide.

(Hint: The mass of an ion is the same as that of an atom of the same element. Atomic mass of Al = 27 u)


Name the following radicals :

Cr2072


Write the names of ZnS compounds :


A liquid compound X of molecular mass 18 u can be obtained from a number of natural sources. All the animals and plants need liquid X for their survival. When an electric current is passed through 200 grams of pure liquid X under suitable conditions, then 178 grams of gas Y and 22 grams of gas Z are produced. Gas Y is produced at the positive electrode whereas gas Z is obtained at the negative electrode. Moreover, gas Y supports combustion whereas gas Z burns itself causing explosions.

  1. Name (i) liquid X (ii) gas Y, and (iii) gas Z.
  2. What is the ratio of the mass of element Z to the mass of element Y in the liquid X ?
  3. Which law of chemical combination is illustrated by this example ?
  4. Name two sources of liquid X.
  5. State an important use of Y in our life.

Fill in the following blank with suitable word:

The particle which is formed by the loss of electrons by an atom is called..............


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


Give example.

Positive radicals


Give example.

Composite radicals


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

Potassium manganate


State if the following element or radical is divalent?

Lithium


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