Question 11 MarkTo detect leakage of LPG, ethyl alcohol is added to it.AnswerFalse. To detect leakage of LPG, ethyl mercaptan is added to it. ‘View full question & answer→
Question 21 MarkQuartz and mica are metallic minerals.AnswerFalse. Quartz and mica are non-metallic minerals.View full question & answer→
Question 41 MarkMarble is formed by the metamorphosis of sandstone.AnswerFalse. Marble is formed by the metamorphosis of limestone.View full question & answer→
Question 51 MarkLimestone is an igenous rock.AnswerFalse. Limestone is a sedimentary rock.View full question & answer→
Question 61 MarkExtrusive igneous rocks are formed by the cooling of magma below the earth’s surface.AnswerFalse. Intrusive igneous rocks are formed by the cooling of magma below the earth’s surface.View full question & answer→