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Which of the following pairs of properties of alkali metals decreases down the group?
The high solubility of ethanol in water is due to?
Equal masses of calcium trioxocarbonate(iv) were added to dilute hydrochloric acid at the temperature specified. Under which of the following conditions would the reaction be slowest?
What is the mass of silver deposited when 24,125 C of electricity is passed through a solution or silver salt.
[Ag = 108, IF = 96,500 C ]
What quantity of electrons is lost when one mole of iron (II) ions is oxidized to iron (III) ?
Which or the following products could be formed during incomplete combustion of a hydrocarbon.
i.Carbon ii. Hydrogen III. Carbon (Il) oxide
Which or the following substances is a polypeptide?
The IUPAC name of the compound represented by the structure below is ?
Which of the following substances is an example of a fine chemical?
To obtain pure carbon(ii)oxide from its mixture with carbon(iv)oxide, the mixture should be?
The most important element on the earth's crust is?
Aluminum hydroxide is used in the dyeing industry as a?
An electron can be added to a halogen atom to form a halide ion with?
When a solid substance disappears completely as a gas on heating, the substance is said to have undergone?
When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes?
The general formula for the Alkanals is?
Proteins in acid solution undergo?
What mass of water is produced when 8.0g of hydrogen reacts with excess oxygen?
The chlorinated alkane often used industrially to remove grease is?
The substance often used for vulcanization of rubber is?