Recent questions tagged alkali and alkaline earth metals

+3 votes

1 answer

Assign a reason for each of the following statements. (a) Alkali metals dissolve in liquid ammonia to give deep blue solution.

asked Apr 6, 2019 in JEE by kratos

+3 votes

1 answer

Why is LiF almost insoluble in water whereas LiCl soluble not only in water but also in acetone?

asked Apr 5, 2019 in Class 11 by kratos

+3 votes

1 answer

Most soluble sulphate among Na2so4,mgso4,beso4 snd baso4

asked Apr 4, 2019 in Class 12 by kratos

+3 votes

1 answer

Why Be and Mg do not impart colour to the flame?

asked Apr 4, 2019 in JEE by kratos

+3 votes

1 answer

If p : q = r : *; then show that: mp + np : q = mr + ns : *.

asked Apr 3, 2019 in Class 11 by kratos

+3 votes

1 answer

Which alkali metal during flame test will show colour corresponding to maximum wavelength?

asked Apr 2, 2019 in Chemistry by kratos

+2 votes

1 answer

Which of the following compounds form salt with NaHCO3?

asked Mar 27, 2019 in Class 12 by kratos

+3 votes

1 answer

Which alkali metal ion forms largest hydrate ion in aqueous solution and why?

asked Mar 27, 2019 in Class 12 by kratos

+1 vote

1 answer

Magnesium and Beryllium do not give colour to the flame whereas other alkaline metals give.

asked Mar 26, 2019 in Class 11 by kratos

+2 votes

1 answer

in Be and Li which have more electropositivity

asked Mar 24, 2019 in Class 11 by kratos

+2 votes

1 answer

Which of the following elements do not impart colour to flame ?

asked Mar 24, 2019 in JEE by kratos

+2 votes

1 answer

B(OH)3 + NaOH ⇒ NaBO2 +Na[B(OH)4] +H2O How can this reaction is made to proceed in forward direction.

asked Mar 21, 2019 in JEE by kratos

+2 votes

1 answer

State the basic principle involved in Solvay process.

asked Mar 21, 2019 in Class 11 by kratos

+3 votes

1 answer

The ionic radii of alkaline earth metals are smaller than those of alkali metals. Why?

asked Mar 20, 2019 in Class 12 by kratos

+2 votes

1 answer

Caesium and potassium metals are used as electrodes in photoelectric cells. Explain

asked Mar 18, 2019 in Class 12 by kratos

+3 votes

1 answer

Washing soda has the formula Na2CO3 .10H2O. What mass of anhydrous sodium carbonate is

asked Mar 18, 2019 in JEE by kratos

+2 votes

1 answer

The most abundant element dissolved in sea water is chlorine at a concentration of 19 g/kg of sea water.

asked Mar 17, 2019 in JEE by kratos

+1 vote

1 answer

Match the following and select correct answer.(a) CaSO4.1/2H2O

asked Mar 17, 2019 in Class 11 by kratos

+1 vote

1 answer

Why is LiF almost insoluble in water where as LiCl is soluble not only in water but also in acetone ?

asked Mar 15, 2019 in Class 11 by kratos

+1 vote

1 answer

What is quick lime, slaked lime and lime water ?

asked Mar 13, 2019 in Class 11 by kratos

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