ECAT Chemistry Chapter 13 S-Block Elements Online Test With Answers

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ECAT Chemistry Chapter 13 S-Block Elements Online Test

Sr. # Questions Answers Choice
1 alkaline metal have electrons in s-orbitals: One Two three Four
2 Alkali metals have electrons in s-orbital: one two three Four
3 The strong alkaline solution in water is of metal: Potassium Sodium Lithium Magnesium
4 Which one is alkaline earth metal? Sodium Beryllium Potassium Lithium
5 Which one is alkali metal in them? Rubidium Magnesium Calcium Barium
6 Arabic word "alkali" means: The ashes the sour The fragrant Caustic
7 Group VII-A elements are called: s-block elements p-block elements d-block elements f-block elements
8 II-A group element are called: s-block elements p-block elements d-block elements f-block elements
9 I-A group elements are called: Alkali-metal alkaline earth metals Halogens Chalocogens
10 Acidic soils are neutralized by adding: Plaster of paris Brine Lime Milk of magnesia
11 Plaster of paris is mixed with water, the expansion in volume is: 1% 2% 3% 4%
12 Cement plaster is made by mixing plaster of paris with: glue or oil gypsom glycol alum or borax
13 Gypsom added in cement is: 1% 2% 3% 4%
14 Lime is often used as an agent: dehydrating hydrating oxidizing reducing
15 Chlorophyll contains in it: Li Na Mg Ca
16 All alkali metals react with acetylene to form acetylides except: Li Na K Rb
17 Carbonates of alkaline earth metals decomposes to respectgive metal Oxides Nitrates Sulphates CO<sub>2</sub>
18 Down's cell is used to prepare: Sodium carbonate Sodium bicarbonate Sodium metal Sodium hydroxide
19 The element caesium bears resemblance with: Ca Cr Both of the above None of these
20 the oxides of beryllium are: acidic basic amphoteric None of these
21 Which one o the following does not belong to alkaline earth metals? Be Re Ba Rn
22 d-block elements belong to groups I-A &amp; II-A III-A to VIII-A I-B to X-B Lanthanides
23 Transition elements belong to I-A &amp; II-A III-A to VIII-A I-B to X-B Lanthanides
24 p-block elements belong to group I-A &amp; II-A III-A to VIII-A I-B to X-B Lanthanides
25 s-block elements belong to groups I-A &amp; II-A III-A to VIII-A I-B to X-B Lanthanides
26 Which alkaline earth metal makes peroxide? Be Mg Ca Ba
27 CO2absorber used in breathing tanks is K<sub>2</sub>O<sub>2</sub> K<sub>2</sub>O KO<sub>2</sub> Na<sub>2</sub>O<sub>2</sub>
28 acidic soils are neutralized by adding plaster of paris brine lime milk of magnesia
29 Cement plaster is made by mixing plaster of paris with glue or oil gypson glycol alum or borax
30 Gypsom added in cement is 1% 2% 3% 4%
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