Description : According to Newland’s classification of elements, the properties of sulphur are similar to those of oxygen because sulphur is the
Last Answer : eighth element starting from oxygen
Description : For the synthesis of amino acids cysteine, cystine and methionine the element required is a. Sulphur b. Oxygen c. Nitrogen d. None of these
Last Answer : Ans: D
Description : In the synthesis of cell components the major element required is a. Nitrogen b. Sulphur c. Carbon d. Oxygen
Last Answer : Ans: C
Description : The element which is required by the plant in large quantity – (1) Calcium (2) Nitrogen (3) Phosphorus (4) Sulphur
Last Answer : (2) Nitrogen Explanation: All plants need nitrogen to make amino acids, proteins and DNA, but the nitrogen in the atmosphere is not in a form that they can use. Plants use nitrogen by absorbing either nitrate or ammonium through the roots.
Description : The element used for vulcanizing rubber is - (1) Sulphur (2) Bromine (3) Silicon (4) Phosphorus
Last Answer : (1) Sulphur Explanation: The vulcanization of neoprene or polychloroprene rubber (CR rubber) is carried out using metal oxides (specifically MgO and ZnO, sometimes Pb3O4) rather than sulfur compounds which are presently used with many natural and synthetic rubbers.
Description : The element absorbed both in cation and anion form is – (1) Sulphur (2) Nitrogen (3) Calcium (4) Phosphorus
Last Answer : (2) Nitrogen Explanation: Nitrogen, required in large quantities for healthy plant growth, is supplied either as a cation (ammonium) or an anion (nitrate). The ratio of these two forms of nitrogen in the nutrient solution can have large effects on both the rate and direction of pH changes with time.
Description : The element which is used for vulcanizing rubber – (1) Sulphur (2) Bromine (3) Silicon (4) Phosphorus
Last Answer : (1) Sulphur Explanation: Vulcanisation is a chemical process for converting rubber or related polymers into more durable materials via the addition of sulfur or other equivalent "curatives" or "accelerators". By far the most common vulcanizing methods depend on sulfur.
Description : The element used in the manufacture of safety matches is – (1) Phosphorous (2) Magnesium (3) Silicon (4) Sulphur
Last Answer : (1) Phosphorous Explanation: One end of a match is coated with a material that can be ignited by frictional heat generated by striking the match against a suitable surface. The coated end ... ," contains either phosphorus or phosphorus sesquisulfide as the active ingredient and gelatin as a binder.
Description : Sulphur is required in plants as a nutri- ent element for?
Last Answer : Making vitamins
Description : Which one of the following element is mobile in plants but immobile in soil ? (A) Sulphur (B) Zinc (C) Boron (D) Phosphorus
Last Answer : (D) Phosphorus
Description : Which one of the following element is a constituent of protoplasm? (A) Sulphur (B) Calcium (C) Iron (D) Potassium
Last Answer : (B) Calcium
Description : Weld decay is caused by the formation of a compound with carbon. The other element in this compound is: a) Manganese b) Sulphur c) Chromium d) Nickel
Last Answer : c) Chromium
Description : For the metamorphosis of tadpoles which of the following element must be available in water? a) carbon b)Chlorine c)Sulphur d)iodine
Last Answer : d)iodine
Description : The most important element involved in the food preparation of plants is a. Nitrogen b. Oxygen c. Carbon dioxide d. Sulphur
Last Answer : c. Carbon dioxide
Description : The element which is required by the plant in large quantity : (1) Calcium (2) Nitrogen (3) Phosphorus(4) Sulphur
Last Answer : Nitrogen
Description : The element absorbed both in cation and anion form is (1) Sulphur (2) Nitrogen (3) Calcium (4) Phosphorus
Description : The element used in the manufacture of safety matches is (1) Phosphorous (2) Magnesium (3) Silicon (4) Sulphur
Last Answer : Phosphorous
Description : The element which is used for vulcanizing rubber (1) Sulphur (2) Bromine (3) Silicon (4) Phosphorus
Last Answer : Sulphur
Description : What element has similar chemical properties to phosphorus?
Last Answer : Need answer
Description : What element will most likely react in a similar way as fluorine?
Description : What elements in an element family have similar?
Last Answer : Valency
Description : What element probably has a boiling point most and least similar to the boiling point of calcium?
Last Answer : This element is strontium (Sr).
Description : What is Name an element in the periodic table that you would expect to chemically similar to sulfur?
Description : Why does the isotope of the same element similar from each other?
Description : What other element from fifth period has similar property to oxygen?
Last Answer : Oxygen is placed in the second period of the Mendeleev table.
Description : In 1866, John Newlands, an English scientist, arranged the then known elements in the order of increasing atomic masses. He found that every eighth element had properties similar to that of the first. He called it ... of Pentamates (2) Law of musical notes (3) Law of Octaves (4) None of the above
Last Answer : (3) Law of Octaves Explanation: Newlands compared his discovery to the octaves found in music and thus, he called it the ‘Law of Octaves’. It is also known as ‘Newlands’ Law of Octaves’.
Description : The atomic masses of three elements X, Y and Z having similar chemical properties are 7, 23 and 39 respectively. a) Calculate the average atomic mass of elements X and Z. b) How is the ... this example? d) Give another example of a set of elements which are classified according to this law.
Last Answer : a) The average atomic mass of X and Z = 7 39 2 46 2 23 b) The average atomic mass of X and Z is equal to the atomic mass of Y c) The law illustrated in this example is Dobereiner’s law of triads. d) Another example of Dobereiner’s law is Calcium, Strontium and Barium.
Description : Beam-forming tubes and power tubes are similar except that power pentodes lack what element?
Last Answer : Beam-forming plates.
Description : The base of a transistor serves a purpose similar to what element of the FET
Last Answer : Gate.
Description : A firm may decide that all packages are to be similar or include one major element of the design. This approach to promote an overall company image is called A)family extension. B)family packaging. C)overall packaging. D)package extension.
Last Answer : B)family packaging.