ECAT Chemistry MCQ's Test For Full Book With Answers

ECAT Chemistry MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 Group VII-A elements are called: s-block elements p-block elements d-block elements f-block elements
2 II-A group element are called: s-block elements p-block elements d-block elements f-block elements
3 I-A group elements are called: Alkali-metal alkaline earth metals Halogens Chalocogens
4 Acidic soils are neutralized by adding: Plaster of paris Brine Lime Milk of magnesia
5 Plaster of paris is mixed with water, the expansion in volume is: 1% 2% 3% 4%
6 Cement plaster is made by mixing plaster of paris with: glue or oil gypsom glycol alum or borax
7 Gypsom added in cement is: 1% 2% 3% 4%
8 Lime is often used as an agent: dehydrating hydrating oxidizing reducing
9 Chlorophyll contains in it: Li Na Mg Ca
10 All alkali metals react with acetylene to form acetylides except: Li Na K Rb
11 Carbonates of alkaline earth metals decomposes to respectgive metal Oxides Nitrates Sulphates CO<sub>2</sub>
12 Down's cell is used to prepare: Sodium carbonate Sodium bicarbonate Sodium metal Sodium hydroxide
13 The element caesium bears resemblance with: Ca Cr Both of the above None of these
14 the oxides of beryllium are: acidic basic amphoteric None of these
15 Which one o the following does not belong to alkaline earth metals? Be Re Ba Rn
16 There were seven groups in periodic table proposed by: Al-Razi Dobrierner Newland Mendeleev
17 First of all, idea of groups and periods was introduced by: Al-Razi Dobriener Newland Mendeleev
18 The periodic function of properties of elements is their atomic number Al-Razi Mosley Newland Mendeleev
19 Newland said, every eight element repeats properties of element: 1st 2nd 3rd 4th
20 Dobriener's was a scientist: Russian German English French
21 Newland's was scientist: Russian German English French
22 Mendeleev was a scientist: Russioan German English French
23 Periodic law was given by: Al-Razi Dobriener Newland Mendeleev
24 Law of octaves was given by: Al-Razi Dobriener Newland Mendeleev
25 Law of triads was given by: Al-Razi Dobriener Newland Mendeleev
26 Mosley gave his periodic law in the year: 1829 1864 1871 1913
27 Mendeleev gave his periodic law in the year: 1829 1864 1871 1913
28 Newland gave his law in the year: 1829 1864 1871 1913
29 Dobereiner gave his law in the year: 1829 1864 1871 1931
30 Scientist(s) made contributions in the field designing a periodic table Newland Dobriener Mendeleev &amp; Mosley All of these
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