S-Block Elements Test

Result

S-Block Elements Test - 21

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

By adding gypsum to cement...

A
setting time of cement becomes less

B
setting time of cement increases

C
colour of cement becomes light

D
shining surface is obtained
Question 2
4 / -1

The formula of sodash is ...

A

B

C

D

Solution
Question 3
4 / -1

Which of the following statement is true about Ca(OH)₂ ?

A
It is used in the preparation of bleaching powder

B
It is a light blue solid

C
It does not possess disinfectant property

D
It is used in the manufacture of cement
Question 4
4 / -1

Match the elements given in Column - I with the colour they impart to the flame given in Column - II.

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

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

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

D
A-S, B-R, C-Q, D-P, E-T
Question 5
4 / -1

Which of the following alkaline earth metal sulphates is least soluble in water ?

A
MgSO₄

B
CaSO₄

C
BaSO₄

D
SrSO₄
Question 6
4 / -1

A metal M readily forms water soluble sulphate MSO₄ , water insoluble hydroxide and oxide MO which becomes inert on heating. The hydroxide is soluble in NaOH. The metal M is...

A
Be

B
Ca

C
Mg

D
Sr
Question 7
4 / -1

Among the following compounds of cement which is present in the highest amount ?

A
Ca₂SiO₄

B
Al₂O₃

C
Ca₃SiO₅

D
Ca₃Al₂O₆
Question 8
4 / -1

Which pair of the following chlorides do not impart colour to the flame ?

A
BeCl₂ and SrCl₂

B
BeCl₂ and MgCl₂

C
BaCl₂ and CaCl₂

D
MgCl₂ and CaCl₂
Question 9
4 / -1

A compound (A) on heating gives a colourless gas and a residue that is dissolved in water to obtain (B). Excess of CO₂ is bubbled through aqueous solution of B, (C) is formed, which is recovered in the solid form. Solid (C) on gentle heating gives back (A). The compound is ...

A
CaCO₃

B
K₂CO₃

C
Na₂CO₃

D
CaSO₄ ∙ 2H₂O

Solution
Question 10
4 / -1

For alkaline metal, which of the following trends is incorrect ?

A
Hydration enthalpy : Be > Mg > Ca > Sr

B
Second Ionization enthalpy: Be > Mg > Ca > Sr

C
Density : Sr > Be > Mg > Ca

D
Atomic size : Sr > Ca > Mg > Be