Which of the following metals is least subject to oxidation? w) silver x) gold y) magnesium z) nickel

1 Answer

Answer :

ANSWER: X -- GOLD

Related questions

Description : Which one of the following metals is immune to corrosion by air, water, hydrochloric acid and nitric acid; but is soluble in aqua regia? w) gold x) silver y) magnesium z) nickel

Last Answer : ANSWER: W -- GOLD

Description : Which oxide of the following metals is often used as a pigment in white paint? w) titanium x) cobalt y) nickel z) vanadium

Last Answer : ANSWER: W -- TITANIUM

Description : Which of the following metals is obtained from its most common ore using an electrolytic process? w) nickel x) tin y) aluminum z) manganese

Last Answer : ANSWER: Y -- ALUMINUM

Description : Which one of the following metals is essential to the structure and functioning of hemoglobin? w) copper x) magnesium y) tin z) iron

Last Answer : ANSWER: Z -- IRON

Description : Which of the following metals is a solid at room temperature, yet melts in your hand? w) gallium x) cesium y) sodium z) magnesium

Last Answer : ANSWER: W -- GALLIUM

Description : Which of the following metals melts in your hand? w) gallium x) cesium y) sodium z) magnesium

Last Answer : ANSWER: W -- GALLIUM

Description : Which of the following is an important element of stainless steel. w) chromium x) magnesium y) copper z) nickel  

Last Answer : ANSWER: W -- CHROMIUM  

Description : The silver luster of the metals can be attributed to one of the following. It is attributed to their free w) protons x) ions y) neutrons z) electrons

Last Answer : ANSWER: Z -- ELECTRONS 

Description : Which of the following would be least soluble in water? w) Carbon Tetrachloride x) Sodium Oxide y) Magnesium Bromide z) Potassium Phosphate

Last Answer : ANSWER: W -- CARBON TETRACHLORIDE 

Description : Which of the following elements does not occur in nature as a native ore? w) silver x) gold y) platinum z) aluminum

Last Answer : ANSWER: Z -- ALUMINUM

Description : A metal that does NOT occur native in the earth is w) copper x) gold y) sodium z) silver

Last Answer : ANSWER: Y -- SODIUM 

Description : Which of the following metals is LEAST reactive toward atmospheric oxygen? w) Lead x) Copper y) Iron z) Aluminum

Last Answer : ANSWER: X -- COPPER

Description : Which of the following metals has least, melting point? (1) Gold (2) Silver (3) Mercury (4) Copper

Last Answer : (3) Mercury Explanation: The melting point of the given metals (in Celsius) are:- Gold: 1063; Silver: 961; Copper: 1083; Mercury: 38.86. Mercury is the only elemental metal known to melt at a generally cold temperature.

Description : Which of the following metals has least melting point ? (1) Gold (2) Silver (3) Mercury (4) Copper

Last Answer : Mercury

Description : Galena is a primary ore of which of the following metals? w) zinc x) tungsten y) lead z) silver

Last Answer : ANSWER: Y -- LEAD

Description : The metals commonly used for electroplating are – (1) Gold, Sodium and Chromium (2) Chromium, Copper and Nickel (3) Nickel, Lead and Chromium (4) Gold, Sodium and Potassium

Last Answer : (2) Chromium, Copper and Nickel Explanation: The process of electroplating takes place as metals in ionic form move from a positive to negative electrode. An electric current passing through the ... ability of metal objects. Plating protects by one of two ways, either sacrificially or mechanically.

Description : The metals commonly used for electroplating are (1) Gold, Sodium and Chromium (2) Chromium, Copper and Nickel (3) Nickel, Lead and Chromium (4) Gold, Sodium and Potassium

Last Answer : Chromium, Copper and Nickel

Description : Which element is associated with the term "galvanized"? w) gallium x) zinc y) mercury z) nickel

Last Answer : ANSWER: X -- ZINC

Description : Which of the following materials are used in the manufacture of pig iron from iron ore? w) Limestone and carbon x) Calcium oxide and oxygen y) Chromium and nickel z) Oxygen and sulfur dioxide

Last Answer : ANSWER: W -- LIMESTONE AND CARBON

Description : Which of the following are alloying materials used the manufacture of stainless steel? w) Limestone and carbon x) Calcium oxide and oxygen y) Oxygen and sulfur dioxide z) Chromium and nickel

Last Answer : ANSWER: Z -- CHROMIUM AND NICKEL

Description : Which of the following is the element which makes up about 8 percent of the earth's crust and occurs in all rocks except limestone and sandstone? w) sulfur x) aluminum y) sodium z) magnesium

Last Answer : ANSWER: X -- ALUMINUM

Description : Which of the 3rd period elements loses electrons most readily? w) Sodium x) Magnesium y) Aluminum z) Silicon

Last Answer : ANSWER: A-SODIUM

Description : Mendeleev proposed the existence of an unknown element that he called eka-aluminum. The element is now called: w) magnesium x) silicon y) gallium z) germanium

Last Answer : ANSWER: C -- GALLIUM

Description : Which of the following aqueous solutions would hav the lowest boiling point? Would it be a 1.0 molal solution of: w) Hydrochloric acid x) Sodium Hydroxide y) Acetic Acid, z) Magnesium Chloride

Last Answer : ANSWER: Y -- ACETIC ACID

Description : Thermite is a mixture of aluminum and: w) hematite x) sodium oxide y) iron z) magnesium

Last Answer : ANSWER: W -- HEMATITE

Description : Which of the following elements gains electrons most readily? w) Sodium x) Magnesium y) Aluminum z) Fluorine

Last Answer : ANSWER: D -- FLUORINE

Description : Which of the following atoms or ions would be the smallest? w) sodium atom x) magnesium atom y) singly charged sodium ion z) doubly charged magnesium ion

Last Answer : ANSWER: Z -- DOUBLY CHARGED MAGNESIUM ION

Description : Unpaired electrons are present in ground-state ato of: w) Helium x) Calcium y) Oxygen z) Magnesium

Last Answer : ANSWER: Y -- OXYGEN

Description : If the first ionization energy of magnesium is 176 kilocalories per mole, one would expect the second ionization energy t be approximately: w) 350 kilocalories per mole x) 1,760 kilocalories per mole y) 200 kilocalories per mole z) 20 kilocalories per mole

Last Answer : ANSWER: W -- 350 KILOCALORIES PER MOLE 

Description : Which of the following would have the largest THIR ionization energy? Is it: w) Boron x) Carbon y) Nitrogen z) Magnesium

Last Answer : ANSWER: Z -- MAGNESIUM

Description : Which of the following elements would form an acid oxide with the formula XO2 and an acidic compound with hydrogen with the formula XH2? w) Sodium x) Magnesium y) Aluminum z) Sulfur

Last Answer : ANSWER: Z -- SULFUR

Description : Bronze medal is made up of metals ? A. copper,nickel B. copper, tin (Answer) C. copper, silver D. copper, zinc

Last Answer : B. copper, tin (Answer)

Description : Which of the following metals can be obtained from its ore only by electrolysis of a molten salt ? w) cobalt x) chromium y) copper z) sodium

Last Answer : ANSWER: Z -- SODIUM

Description : The elements that have an outer electron configuration ns2 (read: n - s - 2) are called: w) halogens x) transition metals y) alkaline earths z) noble gases

Last Answer : ANSWER: Y -- ALKALINE EARTHS

Description : The lanthanide series elements are also known as: w) rare earth elements x) non-metals y) fifth period elements z) sixth period elements

Last Answer : ANSWER: W -- RARE EARTH ELEMENTS

Description : This noncombustible liquid in its dry form is noncorrosive to common metals except aluminum. About 90% of all of this material which is manufactured goes into the production of chlorofluorocarbons. ... substance: w) carbon tetrachloride x) methylene chloride y) hydrogen chloride z) methyl fluoride

Last Answer : ANSWER: W -- CARBON TETRACHLORIDE

Description : Cinnabar, pyrite and galena are minerals which consist of one or more metals combined with the same element. Which one of the following is the element that is common to all three of these minerals? Is it: w) iron x) copper y) sulfur z) sodium

Last Answer : ANSWER: C-- SULFUR

Description : The elements in group 1A of the periodic table are called: w) halogens x) alkaline earths y) alkali metals z) rare earths

Last Answer : ANSWER: Y -- ALKALI METALS

Description : The “King of Metals” is : (1) Gold (2) Silver (3) Iron (4) Aluminium

Last Answer : (1) Gold Explanation: Gold, which is not only the most valuable of metals, but also is without its peer in freedom from alloy, is known as the king of metals. Luxurious, classy and beautiful, gold ... most classic and coveted jewelry metal of all. It is also the oldest precious met-al known to man.

Description : The “King of Metals” is : (1) Gold (2) Silver (3) Iron (4) Aluminium

Last Answer : Gold

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 is the process by which an atom gains electrons? w) Reduction x) Neutralization y) Electrolysis z) Oxidation

Last Answer : ANSWER: W -- REDUCTION

Description : The oxidation number of chlorine in KClO4 is: w) -1 x) +3 y) +7 z) +1

Last Answer : ANSWER: C -- +7

Description : The action of concentrated sulfuric acid on sugar best described as: w) catalysis x) oxidation y) reduction z) dehydration

Last Answer : ANSWER: Z -- DEHYDRATION

Description : Vegetable oil is made into margarine through: w) halogenation x) partial hydrogenation y) methylation z) oxidation

Last Answer : ANSWER: X -- PARTIAL HYDROGENATION

Description : Which of the following reactions involve NEITHER oxidation nor reduction? w) burning antimony in chlorine x) decomposition of potassium chlorate y) reaction of sodium with water z) reaction of potassium hydroxide with nitric acid

Last Answer : ANSWER: Z -- REACTION OF POTASSIUM HYDROXIDE WITH NITRIC ACID  

Description : When an aldehyde is heated with Fehling's solution, the aldehyde undergoes one of the following processes. Does it undergo: w) neutralization x) oxidation y) reduction z) esterification

Last Answer : ANSWER: X -- OXIDATION

Description : The oxidation number of N in NaNO2 is: w) +5 x) +2 y) +3 z) -3

Last Answer : ANSWER: Y -- +3 (Accept 3)

Description : Which of the following substances is a molecular solid? w) Glass x) Ice y) Silver z) Table Salt

Last Answer : ANSWER: X -- ICE

Description : A COPPER strip is placed in one compartment of a voltaic cell and a wire connects this strip to a piece of metal in the other compartment through a voltmeter. If the voltmeter reads zero, the other piece of metal is: w) zinc x) mercury y) silver z) copper

Last Answer : ANSWER: Z -- COPPER