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S-BLOCK ELEMENTS

Addition of 2% gypsum in cement________________?

August 30, 2021March 18, 2019 by admin
Addition of 2% gypsum in cement________________?

A. Triggers hydration
B. Triggers hydrolysis
C. Prevents rapid hardening
D. all of the above

Categories Chemistry Mcqs, S-BLOCK ELEMENTS

Which one can form complex ?

August 30, 2021March 18, 2019 by admin
Which one can form complex ?

A. Na
B. Cr
C. Li
D. K

Categories Chemistry Mcqs, S-BLOCK ELEMENTS

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

August 30, 2021March 18, 2019 by 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

Categories Chemistry Mcqs, S-BLOCK ELEMENTS

Magnesium metal does not burn in the vessel containing_______________?

August 30, 2021March 18, 2019 by admin
Magnesium metal does not burn in the vessel containing_______________?

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

Categories Chemistry Mcqs, S-BLOCK ELEMENTS

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

August 30, 2021March 18, 2019 by 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

Categories Chemistry Mcqs, S-BLOCK ELEMENTS

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

August 30, 2021March 18, 2019 by 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

Categories Chemistry Mcqs, S-BLOCK ELEMENTS

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

August 30, 2021March 18, 2019 by 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

Categories Chemistry Mcqs, S-BLOCK ELEMENTS

Gypsum is applied to the soil as a source of________________?

August 30, 2021March 18, 2019 by 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

Categories Chemistry Mcqs, S-BLOCK ELEMENTS

In diaphragm cell hydrogen is discharged by the reduction of__________________?

August 30, 2021March 18, 2019 by admin
In diaphragm cell hydrogen is discharged by the reduction of__________________?

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

Categories Chemistry Mcqs, S-BLOCK ELEMENTS

Which one of the following carbonate is water insoluble ?

August 30, 2021March 18, 2019 by admin
Which one of the following carbonate is water insoluble ?

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

Categories Chemistry Mcqs, S-BLOCK ELEMENTS
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