Metals and Nonmetals

Metals are generally hard. Which of these metals is an exception and is soft and can be cut with a knife?

• Iron

• Gold

• Sodium

• Magnesium

Which of the following is found in liquid state room temperature?

• Mercury

• Aluminum

• Sodium

• Silver

_____________ solution is formed when a piece of iron is put in copper sulphate solution?

• Copper carbonate

• Iron oxide

• Iron sulphate

• None of these

Tags

NGSS.MS-PS1-2

Which of these metals does not react with dilute hydrochloric acid even on heating but reacts with sulphuric acid?

• Copper

• Iron

• Zinc

• Aluminum

Tags

NGSS.MS-PS1-2

What category of elements is shaded in the periodic table?

• Metals

• Nonmetals

• Metalloids

Elements in the shaded area can best be described as -

• Malleable

• Brittle

• Dull

• Insulators

This is a shiny liquid. The melting point is -39 ⁰C and the boiling point is 357 ^oC. It conduct electricity. It is a ​ (a)   . It is toxic. It has been used in thermometer. It is​ (b)  

• metal

• mercury

• non-metal

• copper

• carbon

• sodium

Tags

NGSS.MS-PS1-4

This non-metal is used in purification of water?

• Sulphur

• Hydrogen

• Chlorine

• Carbon

The green coating acquired on copper when kept in air for a long time consists of copper hydroxide and ___________.

(WRITE ANSWER IN BLOCK LETTERS)

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of these is sonorous?

• Diamond

• Copper

• Sulphur

• Phosphorous

Tags

NGSS.MS-PS4-2