Chemistry Mcqs Archives - Page 49 of 125 -

Second ionization potential of alkali metals are very high due to_______________?

Chemistry Mcqs, S-BLOCK ELEMENTS / admin

Second ionization potential of alkali metals are very high due to_______________?

A. being s-block elements
B. inert gas configurations
C. ns1 electronic configuration
D. being metals

Second ionization potential of alkali metals are very high due to_______________? Read More »

Magnesium metal does not burn in the vessel containing_______________?

Chemistry Mcqs, S-BLOCK ELEMENTS / admin

Magnesium metal does not burn in the vessel containing_______________?

A. N2
B. O2
C. N2 and O2
D. Ne

Magnesium metal does not burn in the vessel containing_______________? Read More »

Chemistry Mcqs, S-BLOCK ELEMENTS

Sodium is not observed in +2 oxidation state because of its__________________?

Chemistry Mcqs, S-BLOCK ELEMENTS / admin

Sodium is not observed in +2 oxidation state because of its__________________?

A. high first ionization potential
B. high second ioniation potential
C. high ionic radius
D. high electronegativity

Sodium is not observed in +2 oxidation state because of its__________________? Read More »

Chemistry Mcqs, S-BLOCK ELEMENTS

Which one of the following pairs shown diagonal relationship in the periodic table ?

Chemistry Mcqs, S-BLOCK ELEMENTS / admin

Which one of the following pairs shown diagonal relationship in the periodic table ?

A. Sodium and Lithium
B. Lithium and magnesium
C. Lithium and beryllium
D. Boron and Beryllium

Which one of the following pairs shown diagonal relationship in the periodic table ? Read More »

Chemistry Mcqs, S-BLOCK ELEMENTS

Which one of the following alkali metals forms only normal oxide when it reacts with O2 ?

Chemistry Mcqs, S-BLOCK ELEMENTS / admin

Which one of the following alkali metals forms only normal oxide when it reacts with O2 ?

A. Lithium
B. Sodium
C. Potassium
D. Rubidium

Which one of the following alkali metals forms only normal oxide when it reacts with O2 ? Read More »

Chemistry Mcqs, S-BLOCK ELEMENTS

Gypsum is applied to the soil as a source of________________?

Chemistry Mcqs, S-BLOCK ELEMENTS / admin

Gypsum is applied to the soil as a source of________________?

A. Ca and P
B. S and P
C. Ca and S
D. we could not apply

Gypsum is applied to the soil as a source of________________? Read More »

Chemistry Mcqs, S-BLOCK ELEMENTS

In diaphragm cell hydrogen is discharged by the reduction of__________________?

Chemistry Mcqs, S-BLOCK ELEMENTS / admin

In diaphragm cell hydrogen is discharged by the reduction of__________________?

A. Water
B. HCI
C. Na+
D. NaCl

In diaphragm cell hydrogen is discharged by the reduction of__________________? Read More »

Chemistry Mcqs, S-BLOCK ELEMENTS

Which one of the following carbonate is water insoluble ?

Chemistry Mcqs, S-BLOCK ELEMENTS / admin

Which one of the following carbonate is water insoluble ?

A. Na2CO3
B. K2CO3
C. (NH4)2CO3
D. CaCO3

Which one of the following carbonate is water insoluble ? Read More »

Chemistry Mcqs, S-BLOCK ELEMENTS

Which one of the following substances conducts electricity by the movement of ions ?

Chemistry Mcqs, S-BLOCK ELEMENTS / admin

Which one of the following substances conducts electricity by the movement of ions ?

A. Graphite
B. Copper
C. Molten sodium chloride
D. Mercury

Which one of the following substances conducts electricity by the movement of ions ? Read More »

Chemistry Mcqs, S-BLOCK ELEMENTS

The ore CaSO4.H2O has the general name_______________?

Chemistry Mcqs, S-BLOCK ELEMENTS / admin

The ore CaSO4.H2O has the general name_______________?

A. Gypsum
B. Dolomite
C. Calcite
D. Plaster of Paris

The ore CaSO4.H2O has the general name_______________? Read More »

Chemistry Mcqs, S-BLOCK ELEMENTS