Which one of the following elements is least likely to be found in commercial fertilisers? (1) Nitrogen (2) Phosphorus (3) Potassium (4) Silicon

Which one of the following elements is least likely to be found in commercial fertilisers? (1) Nitrogen (2) Phosphorus (3) Potassium (4) Silicon
by

1 Answer

Answer :

(4) Silicon Explanation: Commercial Fertilizers - a substance containing one or more recognized plant nutrients and that is used for its plant nutrient content or that is designated for use or claimed to have value in promoting plant growth.
by
selected

Related questions

Which one of the following elements is least likely to be found in commercial fertilisers? (1) Nitrogen (2) Phosphorous (3) Potassium (4) Silicon

Description : Which one of the following elements is least likely to be found in commercial fertilisers? (1) Nitrogen (2) Phosphorous (3) Potassium (4) Silicon

Last Answer : Silicon

Which one of the following elements is least likely to be found in commercial fertilizers? (1) Nitrogen (2) Phosphorous (3) Potassium (4) Silicon

Description : Which one of the following elements is least likely to be found in commercial fertilizers? (1) Nitrogen (2) Phosphorous (3) Potassium (4) Silicon

Last Answer : (4) Silicon Explanation: Fertilizers typically provide, in varying proportions: (1) six macronutrients: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and sulfur (S); and (ii) eight ... copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), zinc (Zn) and nickel {Ni}.

The elements known as primary nutrients for plants (1) Nitrogen, Phosphorus and Potassium (2) Nitrogen, Oxygen and Silicon (3) Potassium, Boron and Nitrogen (4) Nitrogen, Phosphorus and Iron

Description : The elements known as primary nutrients for plants (1) Nitrogen, Phosphorus and Potassium (2) Nitrogen, Oxygen and Silicon (3) Potassium, Boron and Nitrogen (4) Nitrogen, Phosphorus and Iron

Last Answer : (1) Nitrogen, Phosphorus and Potassium Explanation: Nitrogen (N), Phosphorus (P) and Potassium (K) are considered as the three essential or primary nutrients for plants. Together they make up ... need small quantities of iron, manganese, zinc, copper, boron and molybdenum, known as trace elements

The elements known as primary nutrients for plants (1) Nitrogen, Phosphorus and Potassium (2) Nitrogen, Oxygen and Silicon (3) Potassium, Boron and Nitrogen (4) Nitrogen, Phosphorus and Iron

Description : The elements known as primary nutrients for plants (1) Nitrogen, Phosphorus and Potassium (2) Nitrogen, Oxygen and Silicon (3) Potassium, Boron and Nitrogen (4) Nitrogen, Phosphorus and Iron

Last Answer : Nitrogen, Phosphorus and Potassium

Of the nonmetallic elements the one least likely to be found in organic compounds is: w) nitrogen x) phosphorus y) chlorine z) selenium

Description : Of the nonmetallic elements the one least likely to be found in organic compounds is: w) nitrogen x) phosphorus y) chlorine z) selenium

Last Answer : ANSWER: Z -- SELENIUM

The three elements most needed in common fertilisers are : (1) Sulphur, Phosphorous and Sodium (2) Nitrogen, Potassium and Phosphorous (3) Phosphorous, Sodium and Nitrogen (4) Calcium, Phosphorous and Potassium

Description : The three elements most needed in common fertilisers are : (1) Sulphur, Phosphorous and Sodium (2) Nitrogen, Potassium and Phosphorous (3) Phosphorous, Sodium and Nitrogen (4) Calcium, Phosphorous and Potassium

Last Answer : Nitrogen, Potassium and Phosphorous

Which of the following groups of elements have an OUTER ELECTRONIC configuration of S-2-P-2? w) halogens x) Nitrogen-Phosphorus Group y) Carbon-Silicon Group z) Boron-Aluminum Group

Description : Which of the following groups of elements have an OUTER ELECTRONIC configuration of S-2-P-2? w) halogens x) Nitrogen-Phosphorus Group y) Carbon-Silicon Group z) Boron-Aluminum Group

Last Answer : ANSWER: Y -- CARBON-SILICON GROUP

The element least likely to be found in an organic compound is (a) oxygen (b) sulfur (c) nitrogen (d) silicon

Description : The element least likely to be found in an organic compound is (a) oxygen (b) sulfur (c) nitrogen (d) silicon

Last Answer : silicon

Which of the following is not a measure component necessarily to be present in fertilisers? (A) Nitrogen (B) Potassium (C) Phosphorous (D) Sulphur

Description : Which of the following is not a measure component necessarily to be present in fertilisers? (A) Nitrogen (B) Potassium (C) Phosphorous (D) Sulphur

Last Answer : (D) Sulphur

(2) Nitrogen, Phosphorous and Sodium Explanation: Fertilizer (or fertiliser) is any organic or inorganic material of natural or synthetic origin (other than liming materials) that is added to a soil to supply one or more plant nutrients essential to the growth of plants. The three elements most needed in common fertilisers are Nitrogen.

Description : (2) Nitrogen, Phosphorous and Sodium Explanation: Fertilizer (or fertiliser) is any organic or inorganic material of natural or synthetic origin (other than liming materials) that is added to a ... essential to the growth of plants. The three elements most needed in common fertilisers are Nitrogen.

Last Answer : Metal are good conductors, because – (1) they contain free electrons (2) the molecules in them are very close to each other (3) the molecules in them collide very freely (4) they contain reflecting surface

In commercial vulcanization, crosslinking is introduced by the addition of: w) sulfur x) toluene y) silicon z) phosphorus

Description : In commercial vulcanization, crosslinking is introduced by the addition of: w) sulfur x) toluene y) silicon z) phosphorus

Last Answer : ANSWER: W -- SULFUR

Which of the following fertilisers contains the least percentage of nitrogen? (A) Liquid ammonia (B) Urea (C) Ammonium phosphate (D) Ammonium sulphate

Description : Which of the following fertilisers contains the least percentage of nitrogen? (A) Liquid ammonia (B) Urea (C) Ammonium phosphate (D) Ammonium sulphate

Last Answer : (C) Ammonium phosphate

Which of the following elements has the atomic number greater than that of Phosphorus? (1) Aluminium (2) Silicon (3) Chlorine (4) Magnesium

Description : Which of the following elements has the atomic number greater than that of Phosphorus? (1) Aluminium (2) Silicon (3) Chlorine (4) Magnesium

Last Answer : (3) Chlorine Explanation: Chlorine is a chemical element with symbol Cl and atomic number 17. Phosphorus is a chemical element with symbol P and atomic number 15.

Which one of the following constitutes natural silk? (a) Nitrogen (b) Magnesium (c) Potassium (d) Phosphorus

Description : Which one of the following constitutes natural silk? (a) Nitrogen (b) Magnesium (c) Potassium (d) Phosphorus

Last Answer : (a) Nitrogen

Red soil is poor in which of the following nutrients ? (A) Phosphorus and Sulphur (B) Phosphorus and Nitrogen (C) Nitrogen and Zinc (D) Nitrogen and Potassium

Description : Red soil is poor in which of the following nutrients ? (A) Phosphorus and Sulphur (B) Phosphorus and Nitrogen (C) Nitrogen and Zinc (D) Nitrogen and Potassium

Last Answer : (D) Nitrogen and Potassium

If in the rice crop field, the leaves turn narrow, short, erect, and lemon yellowish and the entire field may appear yellowish, then the rice may be deficient of which nutrient? a. Calcium b. Potassium c. Nitrogen d. Phosphorus

Description : If in the rice crop field, the leaves turn narrow, short, erect, and lemon yellowish and the entire field may appear yellowish, then the rice may be deficient of which nutrient? a. Calcium b. Potassium c. Nitrogen d. Phosphorus

Last Answer : c. Nitrogen

The three numbers on fertilizer represents the value of the three macro-nutrients used by plants represented as NPK for short. What are they? a. Neon, Phosphorous, Krypton b. Nitrogen, Phosphorus, Potassium c. Neon, Potassium, Krypton d. Neon, Potassium, Phosphorous

Description : The three numbers on fertilizer represents the value of the three macro-nutrients used by plants represented as NPK for short. What are they? a. Neon, Phosphorous, Krypton b. Nitrogen, Phosphorus, Potassium c. Neon, Potassium, Krypton d. Neon, Potassium, Phosphorous

Last Answer : b. Nitrogen, Phosphorus, Potassium

The three numbers on fertilizer represents the value of the three macro-nutrients used by plants represented as NPK for short. What are they? a. Neon, Phosphorous, Krypton b. Nitrogen, Phosphorus, Potassium c. Neon, Potassium, Krypton d. Neon, Potassium, Phosphorous

Description : The three numbers on fertilizer represents the value of the three macro-nutrients used by plants represented as NPK for short. What are they? a. Neon, Phosphorous, Krypton b. Nitrogen, Phosphorus, Potassium c. Neon, Potassium, Krypton d. Neon, Potassium, Phosphorous

Last Answer : b. Nitrogen, Phosphorus, Potassium

Which one of the following elements in plants is not remobilised? (a) Phosphorus (b) Calcium (c) Potassium (d) Sulphur

Description : Which one of the following elements in plants is not remobilised? (a) Phosphorus (b) Calcium (c) Potassium (d) Sulphur

Last Answer : (b) Calcium

Inside the ____ is a gas generator containing a mixture of NaN3 (Sodium Azide), KNO3 (Potassium Nitrate) and SiO2 (Silicon Dioxide). When the undesired event happens, an electric circuit is turned on by a sensor, and a series of chemical reactions generate nitrogen gas that fills ____ in 20 to 30 milliseconds. Fill up the blank

Description : Inside the ____ is a gas generator containing a mixture of NaN3 (Sodium Azide), KNO3 (Potassium Nitrate) and SiO2 (Silicon Dioxide). When the undesired event happens, an electric circuit is ... chemical reactions generate nitrogen gas that fills ____ in 20 to 30 milliseconds. Fill up the blank

Last Answer : Air-bags in automobiles.

Which of the following elements would most likely be a silvery solid at room temperature? w) Sodium x) Silicon y) Selenium z) Astatine

Description : Which of the following elements would most likely be a silvery solid at room temperature? w) Sodium x) Silicon y) Selenium z) Astatine

Last Answer : ANSWER: W -- SODIUM

Commercial fertilisers are available mostly in the form of (A) Powder (B) Granules (C) Lumps (D) Flakes

Description : Commercial fertilisers are available mostly in the form of (A) Powder (B) Granules (C) Lumps (D) Flakes

Last Answer : (B) Granules

Commercial production of hydrogen for the manufacture of nitrogenous fertilisers is done by (A) Steam reforming of naphtha and cracking of natural gas (B) Electrolysis of water (C) Cryogenic separation of hydrogen from coke oven gas (D) All (A), (B) and (C)

Description : Commercial production of hydrogen for the manufacture of nitrogenous fertilisers is done by (A) Steam reforming of naphtha and cracking of natural gas (B) Electrolysis of water (C) Cryogenic separation of hydrogen from coke oven gas (D) All (A), (B) and (C)

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

Which of the following fertilisers provides maximum amount of nitrogen? (a) Calcium Nitrate (b) Urea (c) Ammonium Sulphate (d) Nitrolium

Description : Which of the following fertilisers provides maximum amount of nitrogen? (a) Calcium Nitrate (b) Urea (c) Ammonium Sulphate (d) Nitrolium

Last Answer : Ans: (b)

Phosphatic fertilisers (A) Are useful during early stage of the plant growth (B) Accelerate fruit formation in later stages of growth (C) Lessen the effect of excessive nitrogen application (D) None of these

Description : Phosphatic fertilisers (A) Are useful during early stage of the plant growth (B) Accelerate fruit formation in later stages of growth (C) Lessen the effect of excessive nitrogen application (D) None of these

Last Answer : (B) Accelerate fruit formation in later stages of growth

Which of the following nitrogenous fertilisers has the highest percentage of nitrogen? (A) Calcium nitrate (B) Calcium ammonium nitrate (CAN) (C) Urea (D) Ammonium sulphate

Description : Which of the following nitrogenous fertilisers has the highest percentage of nitrogen? (A) Calcium nitrate (B) Calcium ammonium nitrate (CAN) (C) Urea (D) Ammonium sulphate

Last Answer : (C) Urea

Which of the following elements is not present in a nitrogenous base? (a) Hydrogen (b) Carbon (c) Phosphorus (d) Nitrogen

Description : Which of the following elements is not present in a nitrogenous base? (a) Hydrogen (b) Carbon (c) Phosphorus (d) Nitrogen

Last Answer : (c) Phosphorus

About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and (a) sulphur and magnesium (b) magnesium and sodium (c) calcium and phosphorus (d) phosphorus and sulphur.

Description : About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and (a) sulphur and magnesium (b) magnesium and sodium (c) calcium and phosphorus (d) phosphorus and sulphur.

Last Answer : (d) phosphorus and sulphur.

Which of the following elements is essential for the storage of energy in plants? a. Nitrogen b. Oxygen c. Carbon d. Phosphorus

Description : Which of the following elements is essential for the storage of energy in plants? a. Nitrogen b. Oxygen c. Carbon d. Phosphorus

Last Answer : d. Phosphorus

Which of the following elements is essential for the storage of energy in plants? a. Nitrogen b. Oxygen c. Carbon d. Phosphorus

Description : Which of the following elements is essential for the storage of energy in plants? a. Nitrogen b. Oxygen c. Carbon d. Phosphorus

Last Answer : d. Phosphorus

The element used for vulcanizing rubber is - (1) Sulphur (2) Bromine (3) Silicon (4) Phosphorus

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.

In vulcanization, natural rubber is heated with- (1) Carbon (2) Sulphur (3) Silicon (4) Phosphorus

Description : In vulcanization, natural rubber is heated with- (1) Carbon (2) Sulphur (3) Silicon (4) Phosphorus

Last Answer : (2) Sulphur Explanation: Vulcanization of rubber is a process of improvement of the rubber elasticity and strength by heating it in the presence of sulfur, which results in three-dimensional crosslinking of the chain rubber molecules (polyisoprene) bonded to each other by sulfur atoms.

The element which is used for vulcanizing rubber – (1) Sulphur (2) Bromine (3) Silicon (4) Phosphorus

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.

Which of the following substances would be the best choice to neutralize sulfuric acid? w) sodium hydroxide x) silicon dioxide y) copper metal z) phosphorus pentoxide

Description : Which of the following substances would be the best choice to neutralize sulfuric acid? w) sodium hydroxide x) silicon dioxide y) copper metal z) phosphorus pentoxide

Last Answer : ANSWER: W -- SODIUM HYDROXIDE

Which of the following substances would be the best choice to neutralize aqueous Sodium Hydroxide? w) sodium carbonate x) silicon dioxide y) aluminum oxide z) phosphorus pentoxide

Description : Which of the following substances would be the best choice to neutralize aqueous Sodium Hydroxide? w) sodium carbonate x) silicon dioxide y) aluminum oxide z) phosphorus pentoxide

Last Answer : ANSWER: Z -- PHOSPHORUS PENTOXIDE

The element which is used for vulcanizing rubber (1) Sulphur (2) Bromine (3) Silicon (4) Phosphorus

Description : The element which is used for vulcanizing rubber (1) Sulphur (2) Bromine (3) Silicon (4) Phosphorus

Last Answer : Sulphur

Which of the following finds the least commercial use? (A) Pure iron (B) High silicon iron (C) Low carbon steel (D) High carbon steel

Description : Which of the following finds the least commercial use? (A) Pure iron (B) High silicon iron (C) Low carbon steel (D) High carbon steel

Last Answer : (A) Pure iron

Bone deformities occur due to excessive intake of: (1) Phosphorus (2) Potassium (3) Fatty acid (4) Fluorine

Description : Bone deformities occur due to excessive intake of: (1) Phosphorus (2) Potassium (3) Fatty acid (4) Fluorine

Last Answer : (4) Fluorine Explanation: Bone deformities occur due to excessive intake of Fluorine.

All proteins contain at least 5 specific elements. Four of them are carbon, oxygen, hydrogen, and nitrogen. What is the fifth element?

Description : All proteins contain at least 5 specific elements. Four of them are carbon, oxygen, hydrogen, and nitrogen. What is the fifth element?

Last Answer : ANSWER: SULFUR

Can a silicon nucleus `(._(14)^(31)Si)` transfrom into a phosphorus nucleus `(._(15)^(31)P)` ? What particle would be emitted in the process ? What is

Description : Can a silicon nucleus `(._(14)^(31)Si)` transfrom into a phosphorus nucleus `(._(15)^(31)P)` ? What particle would be emitted in the process ? What is

Last Answer : Can a silicon nucleus `(._(14)^(31)Si)` transfrom into a phosphorus nucleus `(._(15)^(31)P)` ? What ... = 30.97535 am u, m_(p) = 30.97376 am u`

Which of the following is a semiconductor? (a) Phosphorus (b) Wood (c) Silicon (d) Glass

Description : Which of the following is a semiconductor? (a) Phosphorus (b) Wood (c) Silicon (d) Glass

Last Answer : Ans:(c)

Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property? (A) Silicon (B) Phosphorus (C) Sulphur (D) None of these

Description : Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property? (A) Silicon (B) Phosphorus (C) Sulphur (D) None of these

Last Answer : (A) Silicon

Brittleness of cold is due to an excess of (A) Sulphur (B) Carbon (C) Phosphorus (D) Silicon

Description : Brittleness of cold is due to an excess of (A) Sulphur (B) Carbon (C) Phosphorus (D) Silicon

Last Answer : Answer: Option C

Iron ore may contain (A) Carbon (B) Silicon (C) Phosphorus and manganese (D) All the above

Description : Iron ore may contain (A) Carbon (B) Silicon (C) Phosphorus and manganese (D) All the above

Last Answer : Answer: Option D

Red short iron cracks when bent due to the presence of (A) Sulphur (B) Carbon (C) Phosphorus (D) Silicon

Description : Red short iron cracks when bent due to the presence of (A) Sulphur (B) Carbon (C) Phosphorus (D) Silicon

Last Answer : Answer: Option A

Acid rain is caused due to pollution of atmosphere by – (1) oxides of carbon and nitrogen (2) oxides of nitrogen and sulphur (3) oxides of nitrogen and phosphorus (4) None of these

Description : Acid rain is caused due to pollution of atmosphere by – (1) oxides of carbon and nitrogen (2) oxides of nitrogen and sulphur (3) oxides of nitrogen and phosphorus (4) None of these

Last Answer : (2) oxides of nitrogen and sulphur Explanation: Acid rain is caused by emissions of Sulpfur Dioxide (SO2) and Nitrogen Oxide (NOx), which react with the water molecules in the atmosphere to produce acids.

Which of the following is an essential element used in the synthesis of proteins and other compounds? (1) Phosphorus (2) Iron (3) Magnesium (4) Nitrogen

Description : Which of the following is an essential element used in the synthesis of proteins and other compounds? (1) Phosphorus (2) Iron (3) Magnesium (4) Nitrogen

Last Answer : (4) Nitrogen Explanation: Although all of the elements above are used by plants and taken up via the soil, nitrogen is especially essential and used specifically for the for the synthesis of proteins and other compounds.

The element absorbed both in cation and anion form is – (1) Sulphur (2) Nitrogen (3) Calcium (4) Phosphorus

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.

The element absorbed both in cation and anion form is (1) Sulphur (2) Nitrogen (3) Calcium (4) Phosphorus

Description : The element absorbed both in cation and anion form is (1) Sulphur (2) Nitrogen (3) Calcium (4) Phosphorus 

Last Answer : Nitrogen

Milk is deficient of which mineral? (A) Phosphorus (B) Sodium (C) Iron (D) Potassium

Description : Milk is deficient of which mineral? (A) Phosphorus (B) Sodium (C) Iron (D) Potassium

Last Answer : C