METALS AND NON-METALS CLASS10

Non-metal used in water purification process

• Oxygen

• Nitrogen

• Chlorine

• Iodine

Sodium is very reactive metal because it reacts vigorously with oxygen and water and

• Generate heat

• Catches fire

• Stored in kerosene

• All of the above

Red litmus paper turns blue when it is dipped in

• Acidic solution

• Basic solution

• Neutral solution

• None of the above

What is just so typical of NON-metals?

• They don't know what colours go well together.

• Malleable.

• Form acidic oxides.

• Good conductors of electricity.

• High melting points.

Tags

NGSS.HS-PS1-1

A student is examining the physical properties of a sample. The sample is malleable, but does not conduct electricity nor have luster. This sample would be a...

• metal 
• nonmetal 
• metalloid

Tags

NGSS.HS-PS1-1

Which diagram shows the most favourable conditions for rust to appear on the nail?

• A

• B

• C

• D

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-2

Almost all metals are very hard and non-metals are not very hard.Which following pair is an exception to this statement?

• sodium and sulphur

• potassium and carbon

• sodium and diamond

• iron and phosphorous

What is the correct equation for reaction between Sodium hydroxide and aluminium?

• NaOH + Al ----> NaAlO₂ + H₂

• NaOH + Al --------> NaAl + H₂O

• NaOH + Al -------> Na₃Al + O₂

• None of these

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Arrange the metals copper, zinc and iron in their increasing order of their reactivity.

• copper,iron,zinc

• iron,copper,zinc

• copper,zinc,iron

• iron,zinc,copper

What will happen when we add Iron nails in copper sulphate solution .Choose the correct option

• CuSO₄ + Fe -----> FeSO₄ + CuSO₄

• CuSO₄ + I ------> ISO₄ + Cu

• CuSO₄ + Fe ------> FeSO₄ + Cu

• All of the above

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2