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प्रश्न
Complete the statement given below by filling in the blank with the correct word.
Element ______ has the symbol derived from its Latin name ‘Argentum’
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उत्तर
Element silver has the symbol derived from its Latin name ‘Argentum’
संबंधित प्रश्न
Fill in the blank
Use of a ................. to separate the components of a mixture of solids is based on the difference in the size of the components
Give one use of the following substance:
Brass
Match the Columns:
| Column A | Column B | ||
| (a) | Metals | (i) | Non-Reactive |
| (b) | Molecules | (ii) | Brittle |
| (c) | Non-Metals | (iii) | Lustrous |
| (d) | Noble Gases | (iv) | Smallest unit of Compound |
State what are radicals. Give the names of the radicals –
(a) NO3
(b) OH
(c) SO4
(d) CO3
Write the names of elements from the following symbol:
Cd
Give a reason for the following statement:
Components in a mixture are present in varying proportions and not in a fixed proportion.
Non-metal conducting electricity :______ :: Metal conducting electricity : Copper
Elements : Combine to form compounds :: Compounds : ______.
Assertion: Air is a mixture of elements only.
Reason: Only nitrogen, oxygen and neon gases exist in air.
Match the following.
| Atom | Building block of matter |
| Element | Atoms of different kinds |
| Compound | Atoms of the same kind |
| Molecule | Smallest unit of a substance |
