Solved Chemistry MCQS Set 6

The ratio of close packed atoms to tetrahedral holes in cubic close packing is

2:01

1:01

1:03

1:02

Which quantum number is sufficient to describe the electron is hydrogen

s

m

n

Red lead is

PbO₂

Pb₃O₄

Pb₄O₃

PbO

Natural fertilizer provides phosphorus to plants in the form of P₂O₅

3.2 kg

1.2 kg

2.2 kg

4 kg

The structure of XeF6

Distorted octahedral

None of the above

Pyramidal

Tetrahedral

Bell metal is an alloy of

Cu, Zn and Ni

Cu, Zn and Sn

Cu and Zn

Cu and Sn

How many moles of Helium gas occupy 22.4 L at 0°C at a atm. Pressure?

1.11

1

0.9

0.11

Which of the following has no tin in its composition?

Bronze

Solder

Tin stone

Brass

Gooch Crucible used to filter the solution of

KMnO₄

H₂SO₄

Both B & C

HCI

One mole of gas refers to

The number of molecules contained in 12 grams of ¹²C isotope

The number of molecules in one litre of gas

The number of molecules in one gram of gas

The number of molecules in 22.4 litres of a gas at S.T.P.