The periodic classification is an arrangement of the elements
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Past Questions
137 questionsWhich of the following statements is correct about the periodic table?
On which of the following is the solubility of a gaseous substance dependent?
I. Nature of solvent
II. Nature of solute
III. Temperature
IV. Pressure
A basic postulate of the kinetic theory of gases is that the molecules of a gas move in straight lines between collisions. This implies that
A correct electrochemical series can be obtained from Na, Ca, Al, Mg, Zn, Fe, Pb, H, Cu, Hg, Ag, Au by interchanging
The Consecutive members of an alkane homologous series differ by
Which of the following gases may not be dried with concentrated sulphuric acid?
An element used in the production of matches is
According to the Kinetic Theory an increase in temperature causes the kinetic energy of particles to
To what temperature must a gas at 273k be heated in order to double both its volume and pressure?
Which of the following is an example of a chemical change?
The type of bonding in [Cu(NH\(_3\))\(^4\)]\(^{2+}\) is
What is the PH of 0.00 1 moldm\(^3\) solution of the sodium hydroxide
The Sulphide which is insoluble in dilute hydrochloric acid is
A substance that is used as a ripening agent for fruits is
According to Charles' law, the volume of a gas becomes zero at
A given amount of gas occupies 10.0dm\(^3\) at 4 atm and 273°C. The number of moles of the gas present is?
[Molar volume of gas at s.t.p = 22.4 dm\(^3\)]