ECAT Chemistry Chapter 14 Group IIIA & IVA Elements Online Test With Answers

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ECAT Chemistry Chapter 14 Group IIIA & IVA Elements Online Test

Sr. # Questions Answers Choice
1 Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly
2 Marble is chemically CaCl<sub>2</sub> CaCO<sub>3</sub> Na<sub>2</sub>CO<sub>3</sub> NaHCO<sub>3</sub>
3 Which salt is used for preserving food BaCl<sub>2</sub> CaCl<sub>2</sub> NaCl Na<sub>2</sub>SO<sub>4</sub>
4 Which salt is used for the treatment of hyperacidity in stomach NaCl KCl NaHCO<sub>3</sub> Na<sub>2</sub>CO<sub>3</sub>
5 Which of the following salt is used as purgative CaSO<sub>4</sub> MgSO<sub>4</sub> BeSO<sub>4</sub> NaCl
6 The chemical formula of Epson salt is MgSO<sub>4</sub> MgCl<sub>2</sub> MgSO<sub>4</sub>. 7H<sub>2</sub>O MgCl<sub>2</sub>. 7H<sub>2</sub>O
7 NaHCO3is prepared by Down's process Solvay's process Nelson's process None of these
8 Sodium is never found free in nature because of its Chemical reactivity Small ionic size Small atomic volume None of these
9 Which of the following are electropositive in nature Alkali metals Alkaline earth metals Halogens Alkali and alkaline earth metals
10 The oxidation number of each element of group ll-A is 0 +1 +2 -1
11 The oxidation number of each element of group l-A is 0 +1 +2 -1
12 Which of the following element is most reactive Li Na K Cs
13 Sodium forms largely Normal oxides Per-oxides Superoxides None of these
14 CaC2on hydrolysis form CH<sub>4</sub> C<sub>2</sub>H<sub>4</sub> C<sub>2</sub>H<sub>2</sub> C<sub>6</sub>H<sub>6</sub>
15 The chemical formula of chile salt peter is Na<sub>2</sub>CO<sub>3</sub> KNO<sub>3</sub> NaNO<sub>3</sub> NaNO<sub>2</sub>
16 Lithium reacts with air to form Peroxide Normal oxide Superoxide None of these
17 ______ is called milk of magnesia NaOH KOH LiOH None
18 ______ is used in breathing equipments for mountaineers and in space craft Li<sub>2</sub>O BeO N<sub>2</sub> KO<sub>2</sub>
19 The electrolytic cell used for the production of metallic sodium is known as Down's cell Solvary's cell Haber's cell None of these
20 Carbonates of alkali metals dissolves freely in water to form Acidic solutions Neutral solution Alkaline solution None of these
21 NaHCO3is commonly called Soda ash Baking soda Washing soda None of these
22 ______ gives peroxide Li Ba Sr Be
23 Which of the following form normal oxide K Li Na None
24 Which of the following is the hardest metal among following Li Na Rb K
25 Which of the following salt is soluble in water CaCO<sub>3</sub> CaSO<sub>4</sub> MgSO<sub>4</sub> BaSO<sub>4</sub>
26 Alkali metals react violently with halogens to form Hydrides Halides Anyhydrides None of these
27 The formula of lime stone is CaCl<sub>2</sub> MgCO<sub>3</sub> Na<sub>2</sub>CO<sub>3</sub> CaCO<sub>3</sub>
28 The alkali metals form Ionic bond Covalent bond Co-ordinate bond H-bond
29 The chemical formula of gypsum is CaSO<sub>4</sub>. 5H<sub>2</sub>O CaSO<sub>4</sub>. 4H<sub>2</sub>O CaSO<sub>4</sub>. 2H<sub>2</sub>O None of these
30 Which of all following compound is not possible
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