What are αβ and γ in the following equation

αK4FeCN6+β K2CO3+γSheat  Products ?

the products are Fe, CO2, KCNO and KSCN.

(A) 1, 2, 3                                               

(B) 2, 1, 5

(C) 1, 1, 5                                               

(D) 2, 2, 3

Subtopic:  Chemical Properties |
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The correct order of increasing ionic character is –

(1) BeCl2<MgCl2<CaCl2< BaCl2

(2) BeCl2<MgCl2<BaCl2<CaCl2

(3) BeCl2<BaCl2<MgCl<CaCl2

(4) BaCl2<CaCl2<MgCl2<BeCl2

Subtopic:  Physical Properties |
 80%
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The polarising power of Mg is close to that of –

1. Na                                       

2. Cs

3. Li                                         

4. K

Subtopic:  Physical Properties |
 83%
From NCERT
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Sodium metal cannot be stored under-

(1) Benzene                                         

(2) Kerosene

(3) Alcohol                                           

(4) Toluene

Subtopic:  Physical Properties |
 61%
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Sodium looses its lustre on exposure to air due to formation of-

(1) Na2O, NaOH and Na2CO3                     

(2) Na2O and NaOH

(3) Na2O and Na2CO3                                 

(4) NaOH and Na2CO3

Subtopic:  Chemical Properties |
 50%
From NCERT
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Sodium oxide reacts with water violently forming NaOH. On heating above 400ºC, it produces

(1) Monoxide and peroxide

(2) Monoxide and metallic sodium

(3) Peroxide and metallic sodium

(4) Monoxide and oxygen

Subtopic:  Chemical Properties |
 61%
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Alkaline earth metals form hydrated crystalline solids such as MgCl2.6H2O, CaCl2.6H2O. This is due to-

(1) Smaller ionic size

(2) Increased charge on ions

(3) Higher hydration enthalpies

(4) High oxidation potential

Subtopic:  Chemical Properties |
 83%
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The commercial salt is purified by passing-

(1) H2S gas through an alkaline solution of salt

(2) HCl gas through a saturated solution of salt

(3) H2 gas through a solution of salt

(4) Cl2 gas through a saturated solution of salt

Subtopic:  Physical Properties |
 63%
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The incorrect statement among the following is-

1. Alkali metals are more electropositive than alkaline earth metals.

2. Alkaline earth metals are denser and harder than alkali metals.

3. An alkali metal's electronic configuration is ns1 and an alkaline earth metal's electronic configuration is ns2

4. The first IP of alkali metals is more than that of alkaline earth metals.

Subtopic:  Physical Properties |
 52%
From NCERT
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Potassium is kept-

1. Under cold water.                                 

2. In ammonia.

3. In alcohol.                                         

4. In kerosene.

Subtopic:  Physical Properties |
 90%
From NCERT
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