MDCAT Chemistry Chapter 10 Groups Online Test With Answers

MDCAT Chemistry Chapter 10 Groups Online Test

Sr. # Questions Answers Choice
1 What is the formula of clay? Asbestos Talc H2Al2(SiO4)2.H2O Na2SiO3
2 What is the formula of cryolite? Al2O3.2H2O Na2B4O7 .10 H2O Na3AIF6 Ca2B6O11. 5H2O
3 What is the formula of bauxite? Al2O3.2H2O Al2O3 Na2B4O7 .10 H2O Ca2B6O11. 5H2O
4 Corrundam is ore of which element? Al Th In Mg
5 Which alkaline earth metal makes peroxide? Ba Be Mg Ca
6 Which of the following element has high m.p and b.p, it acts as a reducing agent, and can react with bases? Sr Ca Be Mg
7 How magnesium reacts with water? In frozen ice water With cold water In with steam In hot state
8 One of the following does not give the flame test. Which is that Sr Bа Be Na
9 Asbestos is commonly used in making wall board black board soft board hard board
10 Plaster of Paris is obtained from marble bauxite gypsum limestone
11 Elements of II-A group are called alkaline earth metals due to the reason that they occur in earth only they form divalent cations only they have ns2 electronic configuration their oxides and hydroxides are alkaline in nature and metals are present in earth crust
12 Which of the following configurations corresponds to alkaline earth metals? [Ar] 3d10, 4s2 [Ne] 3d2, 3p2 [Ar] 4s2 [Ar], 3d10, 4s1
13 Beryllium differs from other elements of group Il-A due to high charge density comparatively high nuclear charge small radius all above
14 Which element differs from rest of elements of its group? Ba Mg Ca Be
15 The alkaline earth metals are called so because they form alkaline solution and are present in earth crust as minerals form alkaline solution and are found in nature states are present in earth crust are present in earth crust as their minerals
16 Elements of group ll-A are called f-block elements s-block elements p-block elements d-block elements
17 Soda lime is often employed to remove both H2O and NO2 CO2, and NO2, H2O and CO2 H2S and CO2
18 Li resembles with Mg, because the ratio of their charge to size is nearly the same both have nearly same size both are metallic in nature both are found together in nature
19 Compared with alkaline earth metals, the alkali metals exhibit. lower ionization energies greater hardness high boiling point smaller ionic radii
20 Which of the following belongs to alkaline earth metals Cu Zn Sn Mg
Download This Set

Is this page helpful?