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 : 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 : 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 : ________ is an alloy made from iron , chromium and nickel . a) stainless steel b)steel c)brass d)bronze
Last Answer : a) stainless steel
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 : 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 : 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 : 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 : 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 : 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 : ________ 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 : Metalloid is (A) Highly electronegative in nature (B) An element which exhibits the properties of both metal & non-metal (C) An alloy (D) All (A), (B) and (C)
Last Answer : (B) An element which exhibits the properties of both metal & non-metal
Description : Metalloid is (A) An element, which exhibits the properties of both metal & non metal (B) Highly electronegative in nature (C) An alloy (D) All (A), (B) & (C)
Last Answer : (A) An element, which exhibits the properties of both metal & non metal
Description : One metal dissolved in another is called w) an alloy x) an assay y) a mineral z) a ceramic
Last Answer : ANSWER: W -- AN ALLOY
Description : Assertion :- A gas mixed with another gas forms a colloidal solution. Reason :- Mixture of gases is homogenous system.
Last Answer : Assertion :- A gas mixed with another gas forms a colloidal solution. Reason :- Mixture of gases is ... . D. If both Assertion & Reason are False.
Description : Independent assortment of genes does not take place when (a) genes are located on homologous chromosomes (b) genes are linked and located on same chromosome (c) genes are located on non-homogenous chromosome (d) all of these.
Last Answer : genes are linked and located on same chromosome
Description : In chamber process of sulphuric acid manufacture in industry, the gas phase oxidation of SO2 to SO3 is accomplished by a __________ reaction. (A) Non-catalytic homogeneous (B) Non-catalytic heterogeneous (C) Catalytic homogenous (D) Catalytic heterogeneous
Last Answer : (C) Catalytic homogenous
Description : The method of the slices is applicable to (A) Homogenous soils (B) Stratified soils (C) Saturated soils (D) Non-uniform slopes
Last Answer : Answer: Option A
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 : Crushing of mineral particles is accomplished in a 'cage mill', when one or more alloy steel bars are revolved in opposite directions. It is a type of __________ mill. (A) Impact (B) Roll (C) Vibratory (D) None of these
Last Answer : (A) Impact
Description : Which of the following is not a non-ferrous alloy? (A) Meehanite (B) Magnalium (C) Gun metal (D) Muntz metal
Last Answer : (A) Meehanite
Description : Identify the alloy containing a non-metal as a constituent in it. (1) Bronze (2) Invar (3) Steel
Last Answer : Steel
Description : Is energy a compound or mixture or a element?
Last Answer : It is none of them. Elements, mixtures, and compounds only referto types of matter. Energy is not matter.
Description : Is pile of garbage compound or mixture or a element?
Last Answer : Need answer
Description : Is electricity a mixture element or compound?
Last Answer : Neither. Electricity is not a substance. Electricity is a kindof energy represented by the continuous movement of electrons fromone atom to another, or the accumulation of a static electricalcharge.
Description : Is titanium a element compound homogeneous mixture or a heterogeneous mixture?
Last Answer : Titanium is a chemical element.
Description : Is a dog a element mixture or compound?
Last Answer : It is a mixture.
Description : Is pencil lead a compound or an element or an homogeneous mixture or a heterogeneous mixture?
Last Answer : It is a homogeneous mixture.
Description : IS bromine a compound a element or a mixture?
Last Answer : element
Description : Is smoke an element mixture or compound?
Last Answer : It's a mixture - of air and microscopic dust particles.
Description : Is hydrobromic acid a compound element or a homogeneous mixture?
Last Answer : Hydrobromic acid is a homogeneous mixture of hydrogen bromideand water.
Description : Is burrito a mixture compound or element?
Last Answer : a burrito is a heterogenous mixture
Description : Is krypton a mixture compound or element?
Last Answer : Krypton is an element with symbol Kr and atomic number 36.
Description : Is popcorn a mixture compound or element?
Last Answer : Mixture.
Description : Is dog a mixture compound or element?
Description : Is a gold bracelet a element compound or mixture?
Last Answer : What is the answer ?
Description : Is sucrose an element compound homogeneous mixture or heterogeneous mixture?
Description : Is a stove a compound element or mixture?