Question

om its salt
10. Pieces of coppes silver and gold an
will get a coating of copper is
a iron
D) Silver
sented by
vering with
not
netal, which
ge the
3 points
B. VERY SHORT ANSWER QUESTIONS: Give ones word answers
1. Name a metal which is liquid at room temperature
2. Metals generally have a low specific gravity Thue or false?
3. If a material can be drawn into thin wire, it is said to be
4. Aluminium does not react with water Thue or talker
5. Zn + Cuso, Zno, + Cu is an example of a
reaction
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
is the most
abundant clement in the earth's crust
9. Sand contains the elements
and
10. Which non-metal has very high melting and boiling points?
1. Metal food containers have a coating of
12. Name a soft metal.
13. What is the black material inside a pencil?
14. Metals react with oxygen to produce
oxides, and non-metals react with oxygen to
produce
oxides,
15. Do non-metals react with water?
16. A metal X can replace another metal Y from its metal salt. Is X above or below Y in the
reactivity series?
17. The presence of air and
are necessary for iron to rust,
18. Galvanized iron starts rusting if there is a scratch on the zinc layer. True or false?
19. Copper corrodes in the presence of
and water
20. Name a metal that does not corrode in air.
ore,
C. SHORT-ANSWER QUESTIONS (TYPE I): Answer in a sentence or two.
1. What is the difference between the physical state of metals and non-metals at room temperature?
2
What do you menn burront​

Answer 1

Answer:

n chemistry, a salt is an ionic compound which is made up of two groups of oppositely charged ions. The ion with a positive charge is called a cation, and the one with a negative charge is called an anion.

Explanation

he atoms in chemical compounds are held together by attractive electrostatic interactions known as chemical bonds. Ionic compounds contain positively and negatively charged ions in a ratio that results in an overall charge of zero. The ions are held together in a regular spatial arrangement by electrostatic force.