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s-Block Elements

Description: S-Block Elements - The elements of the first two groups of the periodic table. Groups 1 (Li, Na, K, Rb, Cs, Fr) and 2 (Be, Mg, Ca, Sr, Ba, Ra) are known as S-Block elements. Free online practice and preparation test for Class XI/XII, UGC, B.Sc Exams
Number of Questions: 25
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Tags: Chemistry Class XI/XII UGC B.Sc Exam S-Block Elements S Block Metals S Block Elements Chemistry S P Block Elements F Block Elements s-Block Elements Alkali Metals General Characteristics of Alkali Metals Alkaline Earth Metals Alkaline Earth Metal Compounds used in Daily Life Group 13 Elements
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Which of the following is not included in 's' block?

  1. Cs

  2. Mg

  3. Ca

  4. He


Correct Option: D

Which of the following forms a stable superoxide?

  1. Li

  2. Ba

  3. Cs

  4. Na


Correct Option: C

Which of the following does not show any flame test?

  1. Ba

  2. Ca

  3. Sr

  4. Mg


Correct Option: D

Alkali metals in liq NH3 gives

  1. blue colour

  2. green colour

  3. violet colour

  4. none of these


Correct Option: A

Which of the following is manufactured by Solvey's process?

  1. Na2CO3

  2. NaOH

  3. CaOCl2

  4. NH3


Correct Option: A

The microcosmic salt among following is

  1. Na(NH3) HPO4. 6H2O

  2. Na.NH4 (HPO4) 4H2O

  3. Na(NH4) HPO4. 24H2O

  4. Na(NH4) HPO4. 12H2O


Correct Option: B

The most soluble in water is

  1. BeCO3

  2. MgCO3

  3. CaCO3

  4. SrSO4


Correct Option: A

What is named as Carnallite?

  1. Na2B4O7.10H2O

  2. CaCO3.MgCO3

  3. KCl MgCl2. 6H2O

  4. Na3 AlF6


Correct Option: C

Epsom salts is

  1. MgSO4 . 2H2O

  2. CaSO4.2H2O

  3. Na2CO3. 10H2O

  4. MgSO4 . 7H2O


Correct Option: D

Which one of the following was used in Neutron discovery by Chadwick?

  1. 3Li7

  2. 4Be9

  3. 6C13

  4. 7N15


Correct Option: B

Which of the following is not amphoteric?

  1. BeO

  2. Al2O3

  3. ZnO

  4. CaO


Correct Option: D

Which of the following does not show diagonal relationship?

  1. Li-Be

  2. Be-Al

  3. B-Si

  4. Li-Mg


Correct Option: A

Which of the following produces acetylene gas on hydrolysis?

  1. Be2C

  2. Al4C3

  3. CaC2

  4. All of these


Correct Option: C

The metal present in chlorophyll is

  1. Na

  2. Mg

  3. Ca

  4. Sr


Correct Option: B

Na metal cannot be stored under

  1. paraffin

  2. kerosene

  3. petrol

  4. ethanol


Correct Option: B

Plaster of Paris is

  1. CaSO4 .0.5 H2O

  2. CaSO4.2H2O

  3. CaSO4.7H2O

  4. CaSO4.3H2O


Correct Option: A

Baking soda is

  1. Na2CO3

  2. Na2SO4

  3. NaHCO3

  4. None of these


Correct Option: C

Which of the following largely forms covalent compounds?

  1. Mg

  2. Be

  3. Cs

  4. Na


Correct Option: B

Which of the following decomposes on heating?

  1. Na2CO3

  2. Li2CO3

  3. CaO

  4. K2CO3


Correct Option: B

Soda ash is

  1. Na2HCO3

  2. Na2CO3. H2O

  3. NaOH

  4. Na2CO3


Correct Option: D

Which of the following does not form a Nitride?

  1. Cs

  2. Li

  3. Mg

  4. Al


Correct Option: A

Which of the following turns passive by adding HNO3?

  1. Al

  2. Be

  3. Both 1 and 2

  4. Cu


Correct Option: C

Which of the following is used in a desiccators in Laboratory?

  1. Na2CO3

  2. NaCl

  3. Na2SO4

  4. CaCl2


Correct Option: D

Which is called Potash alum?

  1. KAl(SO4)2. 12H2O

  2. K2 SO4 . Al2 (SO4)3 . 24H2O

  3. K2 SO4 . Al2 (SO4)3 . 6H2O

  4. None of these


Correct Option: A

In the extraction of Al from Al2O3, which of the following is used?

  1. CaF2

  2. Na3AlF6

  3. CaCl2

  4. SiO2


Correct Option: B
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