For how many metals of `10^(th)`12 th and `14^(th)` groups in periodic chart, Extraction is possible by self - reduction mrthod ?

For how many metals of `10^(th)`12 th and `14^(th)` groups in periodic chart, Extraction is possible by self - reduction mrthod ?
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For how many metals of `10^(th)`12 th and `14^(th)` groups in periodic chart, Extraction is possible by self - reduction mrthod ?
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List the elements of 15 th group of the periodic table. Name the distinct metals and non-metals of the group.

Description : List the elements of 15 th group of the periodic table. Name the distinct metals and non-metals of the group.

Last Answer : Nitrogen and phosphorous are non-metals. Arsenic and Antimony are metalloids, Bismuth is a metal.

Which of the following reduction reactions are actually employed in commercial extraction of metals ?

Description : Which of the following reduction reactions are actually employed in commercial extraction of metals ?

Last Answer : Which of the following reduction reactions are actually employed in commercial extraction of metals ? A. `Fe_(2 ... + 2CuO rarr 3Cu + SO_(2) uparrow `

Which of the following reduction reactions are actually employed in commercial extraction of metals?

Description : Which of the following reduction reactions are actually employed in commercial extraction of metals?

Last Answer : Which of the following reduction reactions are actually employed in commercial extraction of metals? A. `Fe_(2)O_(3 ... (2)S + 2CuO rarr 6Cu + SO_(2)`

Which one of the following statements concerning elements in the Periodic Table is correct? A Elements of the same group all have the same number of electrons in the outermost occupied electron shell. B Elements of Group 16 occur as cations in ionic compounds. C Oxides of elements in Groups 16 and 17 are basic. D The halogens (Group 17) are all gases at room temperature. E The Group 13 elements are all metals.

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In which of the following pair(s) the minerals are converted in to metals by self-reduction process?

Description : In which of the following pair(s) the minerals are converted in to metals by self-reduction process?

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The study of occupational information should be Options: A) Postponed until the pupil is ready to choose a vocation B) Introduced in connection with a programme of self-appraisal C) Handled only by the school's occupation counsellor D) Made a regular 10th and 12 th grade subject

Description : The study of occupational information should be Options: A) Postponed until the pupil is ready to choose a vocation B) Introduced in connection with a programme of self-appraisal C) Handled only by the school's occupation counsellor D) Made a regular 10th and 12 th grade subject

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Consider the following statements in the extraction of iron from haematite: (I) `CO`is the main reducing agent (II) `Fe_(2)O_(3)`is used to oxidise th

Description : Consider the following statements in the extraction of iron from haematite: (I) `CO`is the main reducing agent (II) `Fe_(2)O_(3)`is used to oxidise th

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Taking first period and 17 th group of the periodic table, write gradation of properties with respect to the following: a) atomic size b) Ionisation energy c) electro positivity and electro negativity.

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Last Answer : a) 6 to 10 %

What Metals are found in groups 3-12?

Description : What Metals are found in groups 3-12?

Last Answer : Need answer

Among the metals Ti,V,W,Zr th and Au the number of metals purified van arkel method are…….

Description : Among the metals Ti,V,W,Zr th and Au the number of metals purified van arkel method are…….

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Which day is observed as Human Rights Day? (a) 14 th November (b) 10 th December (c) 24 th October (d) 1 st January

Description : Which day is observed as Human Rights Day? (a) 14 th November (b) 10 th December (c) 24 th October (d) 1 st January

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Which of the following pairs is not correctly matched with respect to the extraction of metals from their ores ?

Description : Which of the following pairs is not correctly matched with respect to the extraction of metals from their ores ?

Last Answer : Which of the following pairs is not correctly matched with respect to the extraction of metals from ... -Aluminium and tin from their oxides ores .

Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following

Description : Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following

Last Answer : Minerals from which metals can be extracted economically and easily are called ores. The ... . D. roasting followed by electrolytic reduction.

Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following

Description : Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following

Last Answer : Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from ... 2)S+2Cu_(2)O rarr 6Cu+SO_(2)`

Electrolysis is an impotant technique for extraction of metals, and each of the solution needs a minimum voltage to get discharged and this value is e

Description : Electrolysis is an impotant technique for extraction of metals, and each of the solution needs a minimum voltage to get discharged and this value is e

Last Answer : Electrolysis is an impotant technique for extraction of metals, and each of the solution needs a minimum voltage to get ... 3)` D. `H_(2)S_(2)O_(8)`

Electrolysis is an impotant technique for extraction of metals, and each of the solution needs a minimum voltage to get discharged and this value is e

Description : Electrolysis is an impotant technique for extraction of metals, and each of the solution needs a minimum voltage to get discharged and this value is e

Last Answer : Electrolysis is an impotant technique for extraction of metals, and each of the solution needs a minimum voltage to get ... ,H_(2)` D. `O_(2),H_(2)`

Electrolysis is an impotant technique for extraction of metals, and each of the solution needs a minimum voltage to get discharged and this value is e

Description : Electrolysis is an impotant technique for extraction of metals, and each of the solution needs a minimum voltage to get discharged and this value is e

Last Answer : Electrolysis is an impotant technique for extraction of metals, and each of the solution needs a minimum voltage to get ... ` C. `Br_(2)` D. `O_(2)`

Refining process of impure metals depends upon the differences in properties of the metal. Extraction of Al is usually carried out from its bauxite or

Description : Refining process of impure metals depends upon the differences in properties of the metal. Extraction of Al is usually carried out from its bauxite or

Last Answer : Refining process of impure metals depends upon the differences in properties of the metal. ... . leaching C. liquation D. magnetic seperation

Refining process of impure metals depends upon the differences in properties of the metal. Extraction of Al is usually carried out from its bauxite or

Description : Refining process of impure metals depends upon the differences in properties of the metal. Extraction of Al is usually carried out from its bauxite or

Last Answer : Refining process of impure metals depends upon the differences in properties of the metal. Extraction of Al is usually ... A D. I-D,II-A,III-C,IV-B

Statement-1: Carbon is not used as a reducing agent for the extraction of group 2 metals. Statement-2: Carbon reacts with group 2 metal to give carbid

Description : Statement-1: Carbon is not used as a reducing agent for the extraction of group 2 metals. Statement-2: Carbon reacts with group 2 metal to give carbid

Last Answer : Statement-1: Carbon is not used as a reducing agent for the extraction of group 2 metals. Statement ... Statement-1 is false but Statement -2 is true

Match the extraction processes listed in column I with metals listed in column II.

Description : Match the extraction processes listed in column I with metals listed in column II.

Last Answer : Match the extraction processes listed in column I with metals listed in column II. A. a-p,r, b-p,r, c-q , d-s B. a ... -r D. a-p,s, b-p,r,c-q, d-s, r

One of the following metals froms a volatile corbony1 compound and this property is taken advantage of its extraction. This metal is

Description : One of the following metals froms a volatile corbony1 compound and this property is taken advantage of its extraction. This metal is

Last Answer : One of the following metals froms a volatile corbony1 compound and this property is taken advantage of its ... . Nickel B. Iron C. Cobalt D. Vanadium

The common method for the extraction of metals from the oxide ore is :

Description : The common method for the extraction of metals from the oxide ore is :

Last Answer : The common method for the extraction of metals from the oxide ore is : A. Reduction with carbon B. ... . reduction with `H_(2)` D. electrolytic method

Leaching can be used for the extraction of which metals (i) Pb (ii) Al (iii) Ag (iv) Au

Description : Leaching can be used for the extraction of which metals (i) Pb (ii) Al (iii) Ag (iv) Au

Last Answer : Leaching can be used for the extraction of which metals (i) Pb (ii) Al (iii) Ag (iv) Au A. (ii) (iii) and ... iii) C. (ii) and (iv) D. (iii) and (iv)

The process of extraction of metals from their ores; and then refining them for use is known as?

Description : The process of extraction of metals from their ores; and then refining them for use is known as?

Last Answer : metallurgy

Which scientific method is used for the production/extraction of Noble metals?

Description : Which scientific method is used for the production/extraction of Noble metals?

Last Answer : Cyanide process

Electrometallurgical methods of metal extraction is normally used for those metals (A) Whose oxide/ore is not reduced by carbon (B) Which fall in the category of alkali & alkaline earth metals (C) Which stands higher in the electrochemical series of the metal (D) All (A), (B) & (C)

Description : Electrometallurgical methods of metal extraction is normally used for those metals (A) Whose oxide/ore is not reduced by carbon (B) Which fall in the category of alkali & alkaline earth metals (C) Which stands higher in the electrochemical series of the metal (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

The carbon-based reduction method is NOT used for the extraction of

Description : The carbon-based reduction method is NOT used for the extraction of

Last Answer : The carbon-based reduction method is NOT used for the extraction of A. Tin From `SnO_(2)` B. Iton from ... 3)` D. Mangnesium from `MgCO_(3).CaCO_(3)`

The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)

Description : The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)

Last Answer : The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore ... ` D. `CaO + SiO_(2) rarr CaSiO_(3)`

The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)

Description : The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)

Last Answer : The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore ... ` D. `CaO + SiO_(2) rarr CaSiO_(2)`

The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)

Description : The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)

Last Answer : The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore ... ` D. `CaO + SiO_(2) rarr CaSiO_(3)`

In the extraction of Cu from its sulphide ore, the metal is formed by reduction of `Cu_(2)O` with

Description : In the extraction of Cu from its sulphide ore, the metal is formed by reduction of `Cu_(2)O` with

Last Answer : In the extraction of Cu from its sulphide ore, the metal is formed by reduction of `Cu_(2)O` with A. FeS B. CO C. `Cu_(2)S` D. `SO_(2)`

(A) Auto reduction of ore is used for the extraction of copper (R ) The sulphide ore of copper reacts with its oxide to the give the metal

Description : (A) Auto reduction of ore is used for the extraction of copper (R ) The sulphide ore of copper reacts with its oxide to the give the metal

Last Answer : (A) Auto reduction of ore is used for the extraction of copper (R ) The sulphide ore of copper reacts ... . If (A) is incorrect but (R ) is correct

In the extraction of Cu from its sulphide ore, the metal is formed by reduction of `Cu_(2)O` with

Description : In the extraction of Cu from its sulphide ore, the metal is formed by reduction of `Cu_(2)O` with

Last Answer : In the extraction of Cu from its sulphide ore, the metal is formed by reduction of `Cu_(2)O` with A. FeS B. CO C. `Cu_(2)S` D. `SO_(2)`

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) concentration of ore , refining of metal , reduction d) removal of impurities from ore , reduction of ore , refining of metal

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

What alloy is created when you melt and mix all metals on the periodic table in equal portions?

Description : What alloy is created when you melt and mix all metals on the periodic table in equal portions?

Last Answer : You can’t mix them all, their melting points are vastly different.

When talking about the periodic table, what are the trends of precipitates as you move down the column of alkaline earth metals?

Description : When talking about the periodic table, what are the trends of precipitates as you move down the column of alkaline earth metals?

Last Answer : Homework, eh? :)

What are the metals in the periodic table ?

Description : What are the metals in the periodic table ?

Last Answer : : There is no such thing as non-metallic in the periodic table . For example: Boron ( B) Silicon ( Si) Germanium ( Ge) Arsenic ( As) Selenium ( Se) Antimony ( Sb) Tellurium ( Te)

How many metals and non-metals are there in periodic table ?

Description : How many metals and non-metals are there in periodic table ?

Last Answer : In the periodic table, those metals and 2 non-metals are : - Alkali metals , clay metals , transition elements , interstitial elements , lanthanides , actinides and weak metals are all called metals together. Halogen and inert gases are also non-metals.

Where are metals located a periodic table?

Description : Where are metals located a periodic table?

Last Answer : On the left side.

Where are metals located a periodic table?

Description : Where are metals located a periodic table?

Last Answer : On the left side.

Which metals are generally extracted by electrolyte process? Which positions these metals generally occupy in the periodic table?

Description : Which metals are generally extracted by electrolyte process? Which positions these metals generally occupy in the periodic table?

Last Answer : Ans. : Electrolytic process is used for the extraction of active metals like Na, Ca, Mg, K, Al etc. where all other methods fail. Except Al and few other metals, these metals belongs to S-block elements of periodic table. 

What is the name of those elements which divide metals and non-metals in the periodic table?

Description : What is the name of those elements which divide metals and non-metals in the periodic table?

Last Answer : Metalloids

In which part of the periodic table do we find mostly metals and non-metals?

Description : In which part of the periodic table do we find mostly metals and non-metals?

Last Answer : Most metals are found on the extreme left side of a period. Most non-metals are found on the right side of a period.

Name the chemical element that is eleventh in the Lanthanide Series in the periodic table. Because of the metal's high thermal-neutron-absorption cross section, it has been of much interest in terms of use in nuclear reactor hardware. The chemical symbol for this element is Er.

Description : Name the chemical element that is eleventh in the Lanthanide Series in the periodic table. Because of the metal's high thermal-neutron-absorption cross section, it has been of much interest in terms of use in nuclear reactor hardware. The chemical symbol for this element is Er.

Last Answer : ANSWER: ERBIUM

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

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

Assertion : Ovulation occurs on the `14^(th)` day of menstrual cycle in a human female . Reason : The high level of estrogen is controlled 2 or 3 days

Description : Assertion : Ovulation occurs on the `14^(th)` day of menstrual cycle in a human female . Reason : The high level of estrogen is controlled 2 or 3 days

Last Answer : Assertion : Ovulation occurs on the `14^(th)` day of menstrual cycle in a human female . Reason : ... False . D. If both Assertion & Reason are False.

How did the 14 th amendment affect civil liberties in the us during the civil war?

Description : How did the 14 th amendment affect civil liberties in the us during the civil war?

Last Answer : Need answer

The first element of 14 th group is carbon, which is a non-metal. The metallic members of this group are

Description : The first element of 14 th group is carbon, which is a non-metal. The metallic members of this group are

Last Answer : tin and lead