Give molecular formula of Epsom salt?
|
|
0
|
724
|
August 13, 2016
|
Which of the following halides is insoluble in water?
|
|
1
|
555
|
August 13, 2016
|
Which of the following is an ore of calcium? Bauxite, Gypsum, Camellite, Megnetite
|
|
0
|
1006
|
August 13, 2016
|
What is the formula, for Plaster of Paris?
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|
0
|
3174
|
August 13, 2016
|
What is the chemical structure of bleaching power?
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|
0
|
424
|
August 13, 2016
|
What is meant by dead burnt plaster?
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|
0
|
3768
|
August 13, 2016
|
Why a piece of burning Mg keeps on burning in a jar of sulphur dioxide?
|
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0
|
782
|
August 13, 2016
|
Which one of the alkaline earth metal carbonates is thermally the most stable?
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1
|
2970
|
August 13, 2016
|
Discuss the general characteristics and gradation in properties of alkaline earth metals
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|
0
|
4871
|
August 13, 2016
|
Comment on each of the following:
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|
1
|
660
|
August 13, 2016
|
Compare the alkali metals and alkaline earth metals with respect to
|
|
1
|
6620
|
August 13, 2016
|
Beryllium and magnesium do not give specific colour to flame whereas other alkaline earth metals do so. Why?
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|
1
|
17513
|
August 13, 2016
|
The hydroxides and carbonates of sodium and potassium are easily soluble in water while the corresponding salts of magnesium and calcium are sparingly soluble in water. Explain
|
|
0
|
4082
|
August 13, 2016
|
Explain why can alkali and alkaline earth metals not be obtained by chemical reduction methods?
|
|
0
|
2583
|
August 13, 2016
|
State any one reason for alkaline earth metals in general having a greater tendency to form complexes than alkali metals,
|
|
0
|
1298
|
August 13, 2016
|
Arrange the alkaline earth metals in the increasing orderof reactivity
|
|
0
|
702
|
August 13, 2016
|
Arrange the following in the increasing order of solubility in water:
|
|
0
|
1267
|
August 13, 2016
|
Starting with sodium chloride how would you proceed to prepare (i) Sodium metal, (ii) Sodium hydroxide, (iii) Sodium carbonate
|
|
0
|
4261
|
August 13, 2016
|
White balanced equations for reactions between:
|
|
1
|
453
|
August 13, 2016
|
Explain what happens when:
|
|
1
|
1764
|
August 13, 2016
|
What happens when (i) sodium metal is dropped in water
|
|
1
|
14750
|
August 13, 2016
|
Why is $N{{a}_{2}}$C${{O}_{3}}$ solution alkaline?
|
|
0
|
467
|
August 13, 2016
|
What is meant by brine?
|
|
0
|
569
|
August 13, 2016
|
What is the difference between baking soda and baking powder?
|
|
0
|
1271
|
August 13, 2016
|
Why is sodium thiosulphate used in photography?
|
|
0
|
1543
|
August 13, 2016
|
Why table salt becomes wet in rainy season?
|
|
0
|
2224
|
August 13, 2016
|
Potassium carbonate cannot be prepared by Solvay's process, why?
|
|
0
|
7003
|
August 13, 2016
|
In what ways lithium shows similarities to mag-nesium in its chemical behaviour?
|
|
0
|
3473
|
August 13, 2016
|
What are the common physical and chemical features of alkali metals?
|
|
0
|
7578
|
August 13, 2016
|
Explain the significance of sodium, potassium, magnesium and calcium in biological fluids
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|
0
|
5868
|
August 13, 2016
|