S Block Elements Mcqs

1.
I ? A elements are named as alkali metals because

A. Their oxides are basic

B. Their oxide and hydroxides are water soluble

C. Both a & b

D. They are found in earth

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2.
The word Alkali means

A. Base

B. Basic salt

C. Ashes

D. Spirit

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3.
Formula of Chile saltpetre is

A. NaNO3

B. CaCO3

C. Ba (NO3)2

D. NH4Cl

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4.
The elements which are very abundant in earth crust are

A. Si & A?

B. Ca & Mg

C. B & A?

D. All

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5.
The oxides of beryllium BeO is

A. Acidic

B. Basic

C. Amphoteric

D. Neutral

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6.
Which element is necessary for normal leaf development?

A. Si

B. Ba

C. Mg

D. Ca

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7.
Li is different from its family members due to

A. Small size

B. High charge density

C. Less electropositivity

D. All of the above

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8.
Carbonates of lithium are not stable like that of sodium due to

A. Low electronegativity

B. Low electropositivity

C. Low charge density

D. Not known yet

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9.
Nitrates of which pair of elements give different products on thermal decomposition?

A. Na K

B. Mg Ca

C. Li Na

D. Li Ca

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10.
Which one of the following is not an alkali metal?

A. Francium

B. Caesium

C. Rubidium

D. Radium

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11.
Which of the following sulphates is not soluble in water?

A. Sodium sulphate

B. Potassium sulphate

C. Zinc sulphate

D. Barium sulphate

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12.
The element cesium bears resemblance with

A. Ca

B. Cr

C. Both of the above

D. None of the above

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13.
The ore CaSO4.H2O has the general name

A. Gypsum

B. Dolomite

C. Calcite

D. Plaster of Paris

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14.
Downs cell is used to prepare

A. Sodium carbonate

B. Sodium bicarbonate

C. Sodium metal

D. Sodium hydroxide

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15.
Which element is produced at the cathode during the electrolysis of brine in Nelsons cell?

A. H2

B. Na

C. C?2

D. O2

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General Subjects

Business

Computer MCQS

Sciences MCQS

1. I ? A elements are named as alkali metals because

Answer & Solution

2. The word Alkali means

Answer & Solution

3. Formula of Chile saltpetre is

Answer & Solution

4. The elements which are very abundant in earth crust are

Answer & Solution

5. The oxides of beryllium BeO is

Answer & Solution

6. Which element is necessary for normal leaf development?

Answer & Solution

7. Li is different from its family members due to

Answer & Solution

8. Carbonates of lithium are not stable like that of sodium due to

Answer & Solution

9. Nitrates of which pair of elements give different products on thermal decomposition?

Answer & Solution

10. Which one of the following is not an alkali metal?

Answer & Solution

11. Which of the following sulphates is not soluble in water?

Answer & Solution

12. The element cesium bears resemblance with

Answer & Solution

13. The ore CaSO4.H2O has the general name

Answer & Solution

14. Downs cell is used to prepare

Answer & Solution

15. Which element is produced at the cathode during the electrolysis of brine in Nelsons cell?

Answer & Solution

Engineering MCQS

General Subjects MCQS

1.
I ? A elements are named as alkali metals because

2.
The word Alkali means

3.
Formula of Chile saltpetre is

4.
The elements which are very abundant in earth crust are

5.
The oxides of beryllium BeO is

6.
Which element is necessary for normal leaf development?

7.
Li is different from its family members due to

8.
Carbonates of lithium are not stable like that of sodium due to

9.
Nitrates of which pair of elements give different products on thermal decomposition?

10.
Which one of the following is not an alkali metal?

11.
Which of the following sulphates is not soluble in water?

12.
The element cesium bears resemblance with

13.
The ore CaSO4.H2O has the general name

14.
Downs cell is used to prepare

15.
Which element is produced at the cathode during the electrolysis of brine in Nelsons cell?