Recent questions tagged properties of compounds

+2 votes

1 answer

Acid rain may cause (a) rusting easier

asked Apr 6, 2019 in Mathematics by kratos

+3 votes

1 answer

Carbon dioxide is used for extinguishing **** because

asked Apr 6, 2019 in Class 11 by kratos

+1 vote

1 answer

Why hydrated barium peroxide is used in the preparation of H2O2 instead of the anhydrous variety?

asked Apr 5, 2019 in Class 11 by kratos

+3 votes

1 answer

Account for PCl5 is known but NCl5 is not known.

asked Apr 4, 2019 in Class 12 by kratos

+2 votes

1 answer

What is the correct order of decreasing stability of the following cations.

asked Apr 4, 2019 in Chemistry by kratos

+1 vote

1 answer

Glass made of SiO2 is attacked by HF with the formation of SiF6^2- anion The analogous CF6^2- dose not exist.

asked Apr 3, 2019 in Mathematics by kratos

+2 votes

1 answer

Which of the following pair cannot exist together in solution ?

asked Apr 2, 2019 in Class 12 by kratos

+3 votes

1 answer

When a blue litmus is dipped into a solution of hypo chlorous acid, it first turns red and then later gets decolourised. Why?

asked Apr 1, 2019 in Class 11 by kratos

+3 votes

1 answer

Which is not paramagnetic among ?

asked Mar 30, 2019 in Class 12 by kratos

+1 vote

1 answer

Which of the following are true about silicones ?

asked Mar 26, 2019 in JEE by kratos

+1 vote

1 answer

When sulfuring acid reacts with copper, how does the oxidation of number of the sulfur change ?

asked Mar 24, 2019 in Mathematics by kratos

+2 votes

1 answer

Sodium sulphate is soluble in water, whereas barium sulphate is sparingly soluble because

asked Mar 22, 2019 in JEE by kratos

+3 votes

1 answer

Li2O is often considered to be covalent in nature because of the unusually high electro negativity of lithium.

asked Mar 13, 2019 in Class 12 by kratos

+1 vote

1 answer

a) Complete and balance the following chemical equations:(i) P4O10 + PCl→(ii) SnCl4 + C2H5Cl + Na →

asked Mar 12, 2019 in Chemistry by kratos

+1 vote

1 answer

Which metal nitrate gives colourless gas on thermal decomposition?

asked Mar 11, 2019 in JEE by kratos

+1 vote

1 answer

Ca^2+ and Mg^2+ ions in the hard water are estimated by simple titration with

asked Mar 10, 2019 in Class 12 by kratos

+2 votes

1 answer

Calculate the quantity in ***** of (NH4)2 Cr2O7 if 63 gm of (NH4)2 Cr2O7 is heated.

asked Mar 10, 2019 in Chemistry by kratos

+3 votes

1 answer

The compound which gives *** oxygen on moderate heating is :

asked Mar 6, 2019 in Class 12 by kratos

+2 votes

1 answer

'Lapis-Lazuli' is a blue ******** precious stone. It is mineral of the class –

asked Feb 26, 2019 in Chemistry by kratos

+1 vote

1 answer

Write balanced equations for the following: (a) Hydrated Barium peroxide reacts with orthphosphoric acid.

asked Feb 21, 2019 in JEE by kratos

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