Yes, esters are edible. They are found in all vegetables, fruits, herbs and spices in small amounts. Visit BYJU'S - The Learning App to know... View Article
Yes, some esters are harmful in nature. There are toxic esters with distinctive odours which causes harmful effects on health. Example: Dimethyl... View Article
Yes, Hydrochloric acid (HCl) is a stronger acid than Hydrofluoric acid (HF). Visit BYJU'S - The Learning App to know more about the structure... View Article
1) X ⊆ Y 2) Y ⊆ X 3) X ⊂ Y 4) None of these Solution: (3) X = {8n – 7n – 1 : n ϵ N} Y = {49 (n –1) : n ϵ N} --- (1) [all terms divisible by... View Article
1) Reflexive, symmetric but not transitive 2) Reflexive, neither symmetric nor transitive 3) Reflexive, symmetric and transitive 4) None of the... View Article
1) R is an equivalence relation but S is not an equivalence relation 2) Neither R nor S is an equivalence relation 3) S is an equivalence... View Article
1) An equivalence relation 2) Reflexive only 3) Symmetric only 4) Transitive only Solution: (1) a ∈ R a - a + √3 = √3 (irrational number)... View Article
1) Reflexive 2) Transitive 3) Not symmetric 4) A function Solution: (3) Let R = {(1, 3), (4, 2), (2, 4), (2, 3), (3,1)} be relation on the set... View Article
1) An equivalence relation 2) Reflexive and symmetric only 3) Reflexive and transitive only 4) Reflexive only Solution: (3) A = {3, 6, 9,12}... View Article
1) Reflexive 2) Symmetric 3) Transitive 4) Equivalence 5) all the above Solution: (4) Reflexive: For any a ∈ N, a − a = 0 = 0 × n ⇒ −a is... View Article
1) Reflexive only 2) Symmetric only 3) Transitive only 4) An equivalence relation Solution: (4) (a, b) R (c, d) ⇒ a + d = b + c (a, a) R (a,... View Article
1) Reflexive 2) Symmetric 3) Transitive 4) None of these Solution: (2) α R β ⇔ α ⊥ β Reflexive: α ⊥ α R is not reflexive. Symmetric: If α... View Article
