Two substances, P and Q were made to react to form a third substance, P2Q according to the following reaction.Which of the following statements concerning this reaction are incorrect ?(i) The product P2Q shows the properties of substances P and Q.(ii) The product will always have a fixed composition.(iii) The product so formed cannot be classified as a compound.(iv) The product so formed is an element.A) (i), (ii) and (iii) onlyB) (ii), (iii) and (iv) onlyC) (i), (iii) and (iv) onlyD) and (iv) only

Which of the following statements is incorrect for the above chemical reaction ?Among three products one is solid and two are gases.Only one gaseous products is formed.Among the gaseous products one is brown gas and other is colourless gas.Yellow colour solid is formed

A chemical reaction occurs. Which statement is true of the reactants and the products in the reaction? A. The atoms in the products were regrouped into different molecules to form the reactants. B. The atoms in the reactants were regrouped into different molecules to form the products. C. The atoms in the products were destroyed and new molecules appeared to form the reactants. D. The atoms in the reactants were destroyed and new molecules appeared to form the products.

Identify whether the following statement is true or false. Every chemical reaction has multiple reactants and multiple products.

The compound proposition "p AND q" is true only when:a.Either p or q is trueb.Both p and q are truec.Neither p nor q is trued.None of the above

Which of the following statements is not correct?A mixture consists of two or more elements or compounds not chemically combined togetherA compound contains two or more elements chemically combined in fixed proportionsAn element is a substance that is made from only one type of atomA pure substance is made up of a single element or compound mixed with water2Which of the following is not a pure substance?AirEthanolSodium chlorideWater3Which of the following describes a pure substance?Melts at specific and fixed temperature, boils over a range of temperaturesMelts and boils over a range of temperaturesBoils at specific and fixed temperature, melts over a range of temperaturesMelts and boils at specific and fixed temperatures