Description : A homogenous mixture of two or more metal or a metal and non-metal is known as _____. a) alloy b)element c)mineral d)compound
Last Answer : a) alloy
Description : The correct sequence of steps involved in extraction of metal from its ore is a) removal of impurities, purify metal, reduction of ore b) purify metal, removal of impurities, reduction of metal ore . c ... of metal , reduction d) removal of impurities from ore , reduction of ore , refining of metal
Last Answer : d) removal of impurities from ore , reduction of ore , refining of metal
Description : The non-metal used in batteries is a) phosphorous b)nitrogen c) carbon d)sulphur
Last Answer : c) carbon
Description : Which of the following non-metal reacts and catches fire on exposure to air? a) phosphorous b)nitrogen c)sulphur d)hydrogen
Last Answer : a) phosphorous
Description : Rohan had learnt that non-metals on beating with hammer are generally broken into pieces. Which of the following is a non-metal? a) iron nail b)aluminium wire c)copper wire d)piece of coal
Last Answer : d)piece of coal
Description : Germanium is an example of ____________. a) metal b)metalloid c)non-metal d)none
Last Answer : b)metalloid
Description : Example of non-metal which exist in solid state is __________ . a) sulphur b)bromine c)chlorine d)oxygen
Last Answer : a) sulphur
Description : ________ is an alloy made from iron , chromium and nickel . a) stainless steel b)steel c)brass d)bronze
Last Answer : a) stainless steel
Description : ________ does not react with dilute hydrochloric acid but reacts with sulphuric acid and does not liberate hydrogen gas. a) iron b)copper c)gold d)zinc
Last Answer : b)copper
Description : Which metal among the following melts below 30^0 C. a) copper b)aluminium c)gold d)caesium
Last Answer : d)caesium
Description : Which of the following is not property of sodium metal? a) lustre b)hard c)low melting point d)solid at room temperature.
Last Answer : c)low melting point
Description : Metals are generally hard, which of the following metal is an exception and can be cut with a knife? a) iron b)sodium c)gold d)magnesium
Last Answer : b)sodium
Description : _______ being a very light metal is used for making aircraft bodies . a) aluminium b)copper c)zinc d)iron
Last Answer : a) aluminium
Description : The property due to which a metal can be hammered into thin sheets without breaking is _______. a) malleability b)ductility c)tensile strength d)conductivity
Last Answer : a) malleability
Description : __________ metal is liquid at room temperature . a) mercury b)iron c)copper d)silver
Last Answer : a) mercury
Description : Generally metallic oxides are basic and non-metallic are acidic in nature. Solution of which of the following oxides in water will change the colour of blue litmus to red? a)sulphur dioxide b)Magnesium oxide c)iron oxide d)copper oxide
Last Answer : a)sulphur dioxide
Description : What naturally occurring inorganic crystalline solid is a?
Last Answer : a mineral
Description : Which of the following is not property of an alloy? a) strong b)resistant to corrosion c)hard d)Poor conductor of electricity
Last Answer : d)Poor conductor of electricity
Description : One of the practical application of platinum is a) electrical cables c)decorating food stuff b) cooking vessel d)dentistry
Last Answer : d)dentistry
Description : Aluminium is used in making aircraft because a) malleable b)light c)both i and ii d)none of the above
Last Answer : b)light
Description : The composition of brass alloy is a) copper b)copper and gold c)copper and zinc d)tin and zinc
Last Answer : c)copper and zinc
Description : Silver is used for high precision electrical contacts in computer due to its property of ______. a) malleability b)conductivity c)ductility d)none
Last Answer : b)conductivity
Description : The purity of gold is expressed in terms of ____ ___. a)carat b)ounce c)pound d)none
Last Answer : a)carat
Description : Metallic oxide like MgO reacts with water to form a _______. a)base b)acid c)salt d)water
Last Answer : a)base
Description : Q: Which is the hardest naturally occurring substance on the Earth? -General Knowledge
Last Answer : Diamond is the ans
Description : A rock is (A)a naturally occurring, hard, solid substance (B) any hard, solid substance on earth (C)an aggregate of minerals (D)only produced by cooling of magma
Last Answer : an aggregate of minerals
Description : When the Exxon Valdez oil spill occurred, technologists "fertilized" the oil-soaked water with _____ to modify the environment and stimulate he growth of naturally occurring microorganisms. a. nitrogen sources (e.g., urea) b. phosphorus compounds c. other mineral nutrients d. A-C above are correct
Last Answer : d. A-C above are correct
Description : Which of the following statements is not true about diamonds? (a) It is the purest form of carbon (b) It is the hardest naturally occurring substance (c) It is a good conductor of ... diamonds can be prepared by subjecting a solution of pure carbon in iron to very high pressures and temperatures
Last Answer : Ans:(c)
Description : What naturally occurring radioactive substance present in indoor air is suspected as the second leading cause of lung cancer?
Last Answer : ANSWER: RADON
Description : The compound of a metal found in nature is called - (1) Mineral (2) Ore (3) Flux (4) Slag
Last Answer : (1) Mineral Explanation: Metals are an integral part of our planet and are found in almost all rocks and soils. Most metals form compounds called minerals, which are naturally occurring, inorganic solids with regular chemical compositions and crystal structures.
Description : Mineral acids are also classified as: w) carboxyl acids x) inorganic acids y) non-electrolytic acids z) oxidation acids
Last Answer : ANSWER: X -- INORGANIC ACIDS
Description : What mineral doesn't occur naturally on the earth?
Last Answer : They all do. This is a scientific definition of a mineral:A mineral is a naturally occurring chemical compound, usually ofcrystalline form and abiogenic in origin.
Description : a naturally occurring force related to two bodies in motion is _______ force. -General Knowledge
Last Answer : A naturally occurring force related to two bodies in motion is frictional force.
Description : What is the mass in grams of 9.76 x 1012 atoms of naturally occurring sodium?
Last Answer : The mass is 1,62.10e-11.
Description : In this case scientists have copied a type of naturally occurring genetic mutation called?
Last Answer : Feel Free to Answer
Description : What is the Naturally occurring short circular pieces of DNA?
Last Answer : Need answer
Description : All following are naturally occurring nucleotides except (A) Cyclic AMP (B) ATP (C) DNA (D) Inosine monophosphate
Last Answer : Answer : C
Description : Naturally occurring amino acids have (A) L-Configuration (B) D-Configuration (C) DL-Configuration (D) None of these
Last Answer : Answer : A
Description : Pentagastrin is a (A) Naturally occurring form of gastrin (B) Inactive metabolite of gastrin (C) Active metabolite of gastrin (D) Synthetic form of gastrin
Last Answer : Answer : D
Description : The heaviest naturally occurring element is: (1) Mercury (2) Poloni (3) Thorium (4) Uranium
Last Answer : (4) Uranium Explanation: The heaviest element in terms of heaviest per a given number of atoms is the element with the highest atomic weight. This is the element with the larg st number of ... man-made. The heaviest naturally-occurring element is uranium (atomic number 92, atomic weight 238.0289).
Description : Which naturally occurring element in the rice husk makes it termite resistant?
Last Answer : Silicon
Description : Naturally occurring aluminium silicate is?
Last Answer : Mica
Description : Naturally occurring compound of Beryl- lium?
Last Answer : Emerald
Description : Which of the following is not a naturally occurring nuclear fuel? (A) Uranium-238 (B) Thorium-233 (C) Plutonium-239 (D) None of these
Last Answer : (C) Plutonium-239
Description : The number of naturally occurring ele- ments?
Last Answer : 92
Description : In making beer, in the process of ____ barley grains are steeped in water while naturally occurring enzymes digest the starch to simpler carbohydrates. a. steeping b. mashing c. maltng d. worting
Last Answer : c. maltng
Description : The five elements present in most naturally occurring proteins are : (a) C, H, O, P, and S (b) N, C, H, O, and I (c) N, S, C, H, and O (d) C, H, O, S, and I
Last Answer : N, S, C, H, and O
Description : Which of the following statements is not true about fatty acids? (a) Fatty acids are carboxylic acids with long hydrocarbon side chains. (b) The double bonds in unsaturated fatty acids are always ... contain even numbers of carbons and are unbranched. (d) Fatty acids can be saturated or unsaturated
Last Answer : The double bonds in unsaturated fatty acids are always conjugated
Description : The heaviest naturally occurring element is?
Last Answer : Uranium
Description : Naturally occurring ____ play a role in food coloring. a. enzymes c. pigments b. sugars d. carbohydrates
Last Answer : c. pigments