S-Block Elements Test

Result

S-Block Elements Test - 23

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Weekly Quiz Competition

Question 1
4 / -1

Fill in the blanks with suitable option.
“The important ingredients of potland cement are dicalcium silicate ‘‘_____ ’’ % , tricalcium silicate ... % and tricalcium aluminate ‘‘_____ ’’ % respectively.”

A
26% , 51% , 11%

B
51% , 26% , 11%

C
11% , 51% , 26%

D
26% , 11% , 51%
Question 2
4 / -1

Which of the following is the component of most of the kidney stones ?

A
(COO)₂Ca

B
(COONa)₂

C
(COO)₂Ba

D
(COO)₂Mg
Question 3
4 / -1

The difference of water molecules in gypsum and plaster of paris is ...

A

B
2

C

D
Question 4
4 / -1

The formula of carnallite is ...

A

B

C

D
Question 5
4 / -1

Choose proper option for matching column - I and column - II

A
A-R, B-S, C-Q, D-P

B
A-P, B-Q, C-R, D-S

C
A-Q, B-P, C-R, D-S

D
A-S, B-Q, C-P, D-R
Question 6
4 / -1

In the electrolytic separation of Li, KCl is added to LiCl ...

A
To increase the conductivity of LiCl

B
To lower the fusion temperature of the mixure

C
To decrease the conductivity of LiCl

D
Both (1) and (2)
Question 7
4 / -1

Molecular formula of Glauber’s salt is ...

A

B

C

D
Question 8
4 / -1

30 gm of Mg and 30 gm of O₂ are reacted and the residual mixture contains ...

A
60 gm of MgO only

B
40 gm of MgO and 20 gm of O₂

C
45 gm of MgO and 15 gm of O₂

D
50 gm of MgO and 10 gm of O₂

Solution
Question 9
4 / -1

Which of the following is not correct ?

A

B

C
The oxides Li₂O and MgO do not give super oxides by combining with more oxygen.

D
Lithium hydrogen carbonate is obtained in solid form.
Question 10
4 / -1

The number and type of bonds between two carbon atoms in calcium carbides are ...

A
one sigma, one pi.

B
one sigma, two pi.

C
two sigma, one pi.

D
two sigma, two pi

Solution