[D] (i), (iii) and (iv) In this reaction X and Y cannot be broken down into simpler substances by chemical reactions, so X and Y are elements. A compound is a substance composed of two or more elements that are chemically combined in a fixed ratio by mass, so P is a compound with a definite compositRead more
[D] (i), (iii) and (iv)
In this reaction X and Y cannot be broken down into simpler substances by chemical reactions, so X and Y are elements. A compound is a substance composed of two or more elements that are chemically combined in a fixed ratio by mass, so P is a compound with a definite composition.
Which of the following are not ionic compounds?
[B] (ii) and (iii) HCL and CCL₄ are not ionic compounds because they are formed by sharing of electrons. These are covalent compounds.
[B] (ii) and (iii)
See lessHCL and CCL₄ are not ionic compounds because they are formed by sharing of electrons. These are covalent compounds.
Survival of plants in terrestrial environment has been made possible by the presence of
[B] Conducting tissue
[B] Conducting tissue
See lessWhich of the following statements is not true about the compound?
[C] The constituents can be separated by simple physical methods
[C] The constituents can be separated by simple physical methods
See lessSelect the incorrect match.
[C] Lateral meristem Plant elongation
[C] Lateral meristem Plant elongation
See lessTwo chemical species X and Y combine together to form a product P which contains both X and Y, X + Y → P, X and Y cannot be broken down into simpler substances by simple chemical reactions. The following concerning the species X, Y and P are correct?
[D] (i), (iii) and (iv) In this reaction X and Y cannot be broken down into simpler substances by chemical reactions, so X and Y are elements. A compound is a substance composed of two or more elements that are chemically combined in a fixed ratio by mass, so P is a compound with a definite compositRead more
[D] (i), (iii) and (iv)
See lessIn this reaction X and Y cannot be broken down into simpler substances by chemical reactions, so X and Y are elements. A compound is a substance composed of two or more elements that are chemically combined in a fixed ratio by mass, so P is a compound with a definite composition.