Description : In how many different ways can the letters of the word "POMADE" be arranged in such a way that the vowels occupy only the odd positions? a) 72 b) 144 c) 532 d) 36
Last Answer : Answer: D) There are 6 different letters in the given word, out of which there are 3 vowels and 3 consonants. Let us mark these positions as under: [1] [2] [3] [4] [5] [6] Now, 3 vowels can be ... of these arrangements = 3P3 = 3! = 6 ways. Therefore, total number of ways = 6 x 6 = 36.
Description : In how many different ways can the letters of the word "XANTHOUS" be arranged in such a way that the vowels occupy only the odd positions? a) 2880 b) 4320 c) 2140 d) 5420
Last Answer : Answer: A) There are 8 different letters in the given word "XANTHOUS", out of which there are 3 vowels and 5 consonants. Let us mark these positions as under: [1] [2] [3] [4] [5] [6] [7] ... in 5P5 ways = 5! Ways = 120 ways. Therefore, required number of ways = 24 x 120 = 2880 ways.
Description : In how many different ways can the letters of the word 'RAPINE' be arranged in such a way that the vowels occupy only the odd positions? A) 32 B) 48 C) 36 D) 60 E) 120
Last Answer : Answer: C) There are 6 letters in the given word, out of which there are 3 vowels and 3 consonants. Let us mark these positions as under: (1) (2) (3) (4) (5) (6) Now, 3 vowels can be placed at ... . Number of ways of these arrangements = 3P3 = 3! = 6. Total number of ways = (6 x 6) = 36
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? :)
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)
Description : 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 ... (Group 17) are all gases at room temperature. E The Group 13 elements are all metals.
Last Answer : D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron
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
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 : Highly electropositive metals can not be extracted by carbon reduction process because these :
Last Answer : Highly electropositive metals can not be extracted by carbon reduction process because these : A. Metals ... D. Loss of metal is more by vaporisation
Description : Metals which can be extracted by smelting process are :
Last Answer : Metals which can be extracted by smelting process are : A. Zns B. Al C. Pb D. Fe
Description : The study of metals and the overall process by which metals are extracted from its ores are called?
Last Answer : Metallurgy
Description : As one goes across a period in the periodic table, the ionization energy generally increases for one of the following reasons. Is it because of the increasing w) atomic radius x) melting point y) nuclear charge z) density
Last Answer : ANSWER: Y -- NUCLEAR CHARGE
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.
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.
Description : Where are metals located a periodic table?
Last Answer : On the left side.
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.
Description : What is the name of those elements which divide metals and non-metals in the periodic table?
Last Answer : Metalloids
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.
Description : How many of the following metals can be extracted buy carbon reduction method ? Na,Al,Mg,Sn,Fe,Pb,Zn,Ca
Last Answer : How many of the following metals can be extracted buy carbon reduction method ? Na,Al,Mg,Sn,Fe,Pb,Zn,Ca
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.
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)`
Description : Is it true that many metals are extracted from ores that contain sulfide minerals?
Last Answer : Feel Free to Answer
Description : Metals extracted from sea water?
Last Answer : Magnesium and sodium
Description : What type of substances are generally called 'electrolyte'?
Last Answer : Ans: Acid, bases and salts
Description : A gaseous organic compound that is best known for its use in preservative solutions has the chemical formula HCHO (read: H - C - H CHEM-92; Short Answer: Give me the name and atomic number ... element is a clear, odorless gas. This element is one of the essential ingredients in the burning process.
Last Answer : ANSWER: OXYGEN ATOMIC NUMBER = 8
Description : How many hospitality courses are generally expected before being considered for management positions at big-name hotels?
Last Answer : visit them at: http://www.commoninterviewquestions.org/ about them: If you are preparing for the post of secretary within a company and want to apply for the post of secretary then you ... know some important secretary interview questions then you should keep on reading this post at least once.
Description : What is called as transposition table? a) Hash table of next seen positions b) Hash table of previously seen positions c) Next value in the search d) None of the mentioned
Last Answer : b) Hash table of previously seen positions
Description : What is the signal of the last element of the periodic table ?
Last Answer : Uuo The last element of the periodic table.
Description : Which is the first element in the periodic table ?
Last Answer : The first element in the periodic table is hydrogen ( H) .
Description : What is the main basis of modern periodic table ?
Last Answer : The true basis of the modern periodic table is the electron configuration.
Description : How many stages are there in Mendeleev's Periodic Table ?
Last Answer : There are 7 stages in Mendeleev's Periodic Table .
Description : In the second and third stages of the periodic table, after how many elements does religion repeat ?
Last Answer : In the case of the second and third stages of the periodic table, religion repeats itself after the eight elements.
Description : What is the main basis of periodic table ?
Last Answer : The electron configuration is the basis of the periodic table.
Description : What is a Periodic Table of Elements ?
Last Answer : By classifying the elements of the same type of religion in the same category , replacing all the discovered elements , the current table of elements is called the periodic table of elements.
Description : What is the name of the last element of the periodic table ?
Last Answer : The last element of the periodic table is called Ogneson ( Og) .
Description : What is the true basis of periodic table ?
Last Answer : The true basis of the periodic table is the electron configuration.
Description : Position of Phosphorus in Periodic Table v , What is the reason ?
Last Answer : The position of phosphorus is in class V in the periodic table , because- i) the atomic number of phosphorus is divisible by 15 or 5 ii) the last layer of phosphorus atom has 5 electrons
Description : Where is the position of silicon in the periodic table ?
Last Answer : The position of silicon ( Si) in the periodic table is in phase 3 and group 14.
Description : What is the basis of periodic table ?
Last Answer : The electron configuration is the ground view of the periodic table. The periodic table was discovered in 189. Mendeleev's contribution to the invention of the periodic table is far greater.
Description : In the periodic table of elements, on moving from left to right across a period, the atomic radius – (1) decreases (2) increases (3) remains unchanged (4) does not follow a definite pattern
Last Answer : (1) decreases Explanation: The atomic radius is the distance from the atomic nucleus to the outermost stable electron orbital in an atom that is at equilibrium. It tends to decrease across a period from ... usually increases while going down a group due to the addition of a new energy level (shell).
Description : Which metal is the heaviest in periodic table among the following? (1) Os (2) Pt (3) Pb (4) W
Last Answer : (1) Os Explanation: The densest chemical element is Osmium (which is a metal). Osmium has a density of around 22 grams per cubic centimeter, about twice the density of lead.
Description : Who invented the modern Periodic table? (1) Faraday (2) Mendeleev (3) Newton (4) Bohr
Last Answer : (2) Mendeleev Explanation: Dmitri Mendeleev was a Russian chemist who developed the periodic classification of the elements in 1869 A.D.
Description : Which of the following elements replaced eka-Aluminium in Mendeleev's Periodic Table? (1) Scandium (2) Gallium (3) Titanium (4) Germanium
Last Answer : (2) Gallium
Description : Elements present in the 2nd Group of the Periodic Table are also called ?
Last Answer : Ans alkaline earth metals
Description : Name the elements present in the 2nd Group of the Periodic Table:
Last Answer : Ans beryllium, magnesium, calcium, strontium, barium and radium
Description : What is the position of Hydrogen in the periodic table?
Last Answer : Ans. Group I, Period I
Description : (a). Which is largest in size- Cu+ , Cu+2, Cu and why? (b). which element in the periodic table has the highest ionization enthalpy? (c). Which element is more metallic in the periodic table.?
Last Answer : Ans. (a). Cu is largest due to less effective nuclear charge. It has 29 electrons, 29 protons, Cu+ has 28 electrons and 29 protons, Cu2+ has 27 electrons and 29 protons. (b). He has highest ionization enthalpy. (c). Mg is more metallic due to lower ionization energy
Description : What is base of long form periodic table?
Last Answer : Ans: Bohr burry scheme
Description : How many groups and periods are found in long form periodic table?
Last Answer : Ans: 7 periods 18 groups