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 : Which metal among the following melts below 30^0 C. a) copper b)aluminium c)gold d)caesium
Last Answer : d)caesium
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 : 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 : The non-metal used in batteries is a) phosphorous b)nitrogen c) carbon d)sulphur
Last Answer : c) carbon
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 : 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 : 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 : 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 : 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 : 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 : ________ is an alloy made from iron , chromium and nickel . a) stainless steel b)steel c)brass d)bronze
Last Answer : a) stainless steel
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 : 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 : Germanium is an example of ____________. a) metal b)metalloid c)non-metal d)none
Last Answer : b)metalloid
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 : 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 : Example of non-metal which exist in solid state is __________ . a) sulphur b)bromine c)chlorine d)oxygen
Last Answer : a) sulphur
Description : ________ is naturally occurring inorganic substance found deep under the surface of the earth. a) ore b)mineral c)metal d)non-metal
Last Answer : b)mineral
Description : __________ metal is liquid at room temperature . a) mercury b)iron c)copper d)silver
Last Answer : a) mercury
Description : Which of the following is NOT malleable? (1) Graphite (2) Aluminium (3) Copper (4) Silver
Last Answer : (1) Graphite Explanation: Graphite is soft thanks to Van derWalls forces between to sheets of carbon atoms.
Description : Out of the following, the most malleable material is (A) Copper (B) Aluminium (C) Wrought iron (D) Lead
Last Answer : (D) Lead
Description : The most malleable, ductile low resistivity material is (A) Copper. (B) Aluminium. (C) Silver. (D) Iron.
Last Answer : (C) Silver.
Description : Light weight metallic alloy used in aircraft industry is (A) Aluminium (B) High silicon (14%) iron (C) Duralumin
Last Answer : (C) Duralumin
Description : (3) reflection of light due to the presence of free electrons Explanation: Lustre (or luster) is the way light interacts with the surface of a crystal, rock, or mineral. The word ... conductivity, and high density. Typically they are malleable and ductile, deforming -under stress without cleaving.
Last Answer : Cloud is a colloidal dispersion of – (1) Air in a dispersion medium of water (2) Fog in a dispersion medium of water (3) Mist in a dispersion medium of air (4) Water drops in a dispersion medium of air
Description : Tungsten is used for the manufacture of the filament of an electric bulb, because – (1) It is a good conductor (2) It is economical (3) It is malleable (4) It has a very high melting point
Last Answer : (4) It has a very high melting point Explanation: Tungsten is used because it has the highest melting point of all the metallic elements. It melts at 3410 degrees Celsius. When current passes ... bulb. The first successful light bulb filaments were made of carbon (from carbonized paper or bamboo).
Description : Tungsten is used for the manufacture of the filament of an electric bulb, because (1) It is a good conductor (2) It is economical (3) It is malleable (4) It has a very high melting point
Last Answer : It has a very high melting point
Description : Pick out the wrong statement. (A) Metal/alloys having hexagonal crystal lattice structure are less malleable than those having cubic crystal lattice structure (B) Metal/alloys having body centred cubic ... D) Both ferritic & austenitic stainless steel has a face centred cubic (fcc) crystal structure
Last Answer : (C) Tungsten has a body centred cubic (bcc) crystal lattice structure
Description : Select insulating materials for following parts : (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.
Last Answer : Parts Insulating Materials Insulation between heating element and base plate of electric iron. Mica Insulation used over copper or aluminium conductor used for making coils. ... Transformer bushings Porcelain Insulation between transmission line and pole. Porcelain
Description : Why is gold bullion malleable while gold teeth crowns not?
Last Answer : The gold in a filling has been melted and mixed with a hardening mineral (palladium, tin, etc.) so it will last longer.
Description : Do you think much about how malleable reality is? Does it freak you out or blow your mind?
Last Answer : No, but I do think it is far out, dude.
Description : Which is the most malleable metal? -General Knowledge
Last Answer : The answer is 'Brajesh Mishra'
Last Answer : answer:
Description : Statement -1Wrought iron in more malleable and ducitlle than steel. Statement -2: It contains slightly less percentage of carbon.
Last Answer : Statement -1Wrought iron in more malleable and ducitlle than steel. Statement -2: It contains slightly less percentage of carbon.
Description : Is krypton malleable or not malleable?
Last Answer : The question does not really apply, as krypton is a gas undernormal conditions. As it is a non-metal, if you did solidify it, itwould not be malleable.
Description : What type of solid is ductile and malleable?
Last Answer : Several metals are ductile and malleable.
Description : Which is the metal malleable at room temperature?
Last Answer : Magnesium
Description : Which of the following statements about the physical properties of metal is not correct? (a) All metals are solid except mercury (b) Most metals are hard except sodium and potassium (c) Metals are not malleable (d) Most metals are ductile
Last Answer : Ans:(c)
Description : The most malleable metal is (a) Platinum (b) Silver (c) Iron (d) Gold
Last Answer : Ans:(d)
Description : The most malleable metal is - (1) platinum (2) silver (3) gold (4) iron
Last Answer : (3) gold Explanation: Gold is the most malleable of all metals; a single gram can be beaten into a sheet of 1 square meter, and an ounce into 300 square feet.
Description : If a metal can be drawn into wires relatively easily it is called: (1) malleable (2) ductile (3) extractive (4) tactile
Last Answer : (2) ductile Explanation: Ductility is a physical property of a material associated with the ability to be hammered thin or stretched into wire without breaking.
Description : The most malleable metal is?
Last Answer : gold
Description : Polystyrene is a __________ plastic at room temperature. (A) Ductile (B) Brittle (C) Malleable (D) None of these
Last Answer : (B) Brittle
Description : White cast iron is not (A) Malleable (B) Whitish in color (C) Brittle (D) Strong and hard
Last Answer : (A) Malleable
Description : Zinc is highly __________ at room temperature. (A) Ductile (B) Resistant to atmospheric corrosion (C) Malleable (D) Brittle
Last Answer : (B) Resistant to atmospheric corrosion
Description : A material capable of undergoing large permanent deformation, when subjected to compression is termed as (A) Malleable (B) Ductile (C) Brittle (D) None of these
Description : Wrought iron is (A) High carbon iron (B) Highly resistance to acid corrosion (C) Malleable & ductile; and hence is used for chain links, hooks & couplings (D) An alloy of iron, chromium & carbon
Last Answer : (C) Malleable & ductile; and hence is used for chain links, hooks & couplings