Question

6. Which metal is higher up in the reactivity series-sodium or silver?
7. Any rock containing metallic mineral is called an ore. True or false?
is the most abundant element in the universe, whereas
abundant element in the earth's crust.
8.
is the most
9. Sand contains the elements
and
10. Which non-metal has very high melting and boiling points?
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Answer 1

Answer:

Sodium, being highly reactive metal, is placed high in the reactivity series, whereas silver, being very less reactive metal, is placed low in the reactivity series.

Answer 2

Explanation:

6. Sodium, being highly reactive metal, is placed high in the reactivity series, whereas silver, being very less reactive metal, is placed low in the reactivity series.

7.False. Any rock containing metallic mineral is not an ore as it depends on the quantity of metal in the rock. Thus, rocks containing metallic minerals in adequate quantity, from which metals can be extracted profitably, are called ores.

8 . you have not written the full question

9. Silicon and oxygen

10.diamond, an allotrope of carbon.