Chemistry with Adritaa

Select correct symbol of tin

• Tn

• T

• Sn

• Au

Select symbol for Silver

• Sv

• Au

• AG

• Ag

Which of the following has variable valency?

• Iron

• Carbon

• Helium

• Gold

Valency of zincate

• 2-

• 2+

• 3-

• 3+

KOH common name

• Caustic potash

• Potassium hydroxide

• Potassium dioxide

• Blue vitriol

Which of the following elements has isotopes?

• Hydrogen

• Helium

• Lithium

• Beryllium

Does hydrogen react with chloride?

• Yes

• No

Does hydrogen react with oxide

• Yes

• No

Does hydrogen react with nitrate?

• Yes

• No

Does hydrogen react with Platinum?

• Yes

• No

• Unknown