Question

a) Name the following:
i) A solid that melts at 0°C
ii) A non metallic sulphate soluble in water.
iii) An element without neutron.
iv) A salt which has zinc in its anion.
v) An element which has 6 electrons in its valence shell.
vi) A group of three elements.​

Answer 1

Answer:

ice

The melting point of ice is 0°C. The melting point of a solid is the same as the freezing point of the liquid.

Non Metallic sulphate soluble in water is (IO)2SO4 - - - - - Oxo Iodine sulphate or Iodosyl sulphate. It is yellow colored compound formed between reaction of ionic acid and sulfuric acid.

element hydrogen

There is only one stable atom that does not have neutrons. It is an isotope of the element hydrogen called protium. Protium, which contains a single proton and a single electron, is the simplest atom.

Sodium zincate

Sodium zincate refers to anionic zinc oxides or hydroxides, depending on conditions.

oxygen group

triads

Hence the arrangement of elements in a group of three is known as triads.

Explanation:

Answer 2

Answer:

1. Ice

2. oxo iodine sulphate

3. element hydrogen

4.zncl2 is the salt which has zinc in its anion

5.Oxygen

6.metelloid(boron)

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