The most abundant element by number in the living system is : (1) Nitrogen (2) Hydrogen (3) Oxygen (4) Carbon

The most abundant element by number in the living system is : (1) Nitrogen (2) Hydrogen (3) Oxygen (4) Carbon
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(2) Hydrogen Explanation: In sequential order, Hydrogen. Oxygen, Carbon and Nitrogen are the most abundant elements by number in the living system. Hydrogen constitutes 49.8% of living systems, while Oxygen constitutes 24.9%; Carbon and Nitrogen account for 24,9% and 0.27% respectively. It is not surprising, therefore, that the living cell is between 60% and 90% water.
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The most abundant element by number in the living system is : (1) Nitrogen (2) Hydrogen (3) Oxygen (4) Carbon

Description : The most abundant element by number in the living system is : (1) Nitrogen (2) Hydrogen (3) Oxygen (4) Carbon

Last Answer : Hydrogen

The most abundant element in the universe is thoug to be: w) carbon x) oxygen y) hydrogen z) nitrogen

Description : The most abundant element in the universe is thoug to be: w) carbon x) oxygen y) hydrogen z) nitrogen

Last Answer : ANSWER: Y -- HYDROGEN

The most abundant constituent of atmospheric air is – (1) carbon (2) hydrogen (3) oxygen (4) nitrogen

Description : The most abundant constituent of atmospheric air is – (1) carbon (2) hydrogen (3) oxygen (4) nitrogen

Last Answer : (4) nitrogen Explanation: Air is the name given to the atmosphere used in breathing and photosynthesis. Dry air contains roughly (by volume) 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases.

The most abundant constituent of atmospheric air is : (1) carbon (2) hydrogen (3) oxygen (4) nitrogen

Description : The most abundant constituent of atmospheric air is : (1) carbon (2) hydrogen (3) oxygen (4) nitrogen

Last Answer : nitrogen

The most abundant element in the human body is (1) carbon (2) iron (3) nitrogen (4) oxygen

Description : The most abundant element in the human body is (1) carbon (2) iron (3) nitrogen (4) oxygen

Last Answer : oxygen

After carbon, hydrogen, and oxygen, the next most abundant element in proteins is:

Description : After carbon, hydrogen, and oxygen, the next most abundant element in proteins is:

Last Answer : ANSWER: NITROGEN

The element which is the most abundant in the human body is : (1) Oxygen (2) Carbon (3) Iron (4) Nitrogen

Description : The element which is the most abundant in the human body is : (1) Oxygen (2) Carbon (3) Iron (4) Nitrogen

Last Answer : (1) Oxygen Explanation: The generation and maintenance of all our life processes are supported by four basic components: carbohydrates, water, proteins and energy. Most scientists agree that oxygen is ... is largely composed of oxygen. All metabolic processes in the body are regulated by oxygen.

The element which is the most abundant in the human body is: (1) Oxygen (2) Carbon (3) Iron (4) Nitrogen

Description : The element which is the most abundant in the human body is: (1) Oxygen (2) Carbon (3) Iron (4) Nitrogen 

Last Answer : Oxygen

Which of the following is the most common element in the Universe? (1) Nitrogen (2) Oxygen (3) Hydrogen (4) Carbon

Description : Which of the following is the most common element in the Universe? (1) Nitrogen (2) Oxygen (3) Hydrogen (4) Carbon

Last Answer : (3) Hydrogen Explanation: Hydrogen is the most abundant element in the Universe; helium is second.

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

The most abundant element in the earth's atmosphere is – (1) Argon (2) Nitrogen (3) Oxygen (4) Krypton

Description : The most abundant element in the earth's atmosphere is – (1) Argon (2) Nitrogen (3) Oxygen (4) Krypton

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The most abundant element in the earth’s atmosphere is (1) Argon (2) Nitrogen (3) Oxygen (4) Krypton

Description : The most abundant element in the earth’s atmosphere is (1) Argon (2) Nitrogen (3) Oxygen (4) Krypton

Last Answer : Nitrogen

The most abundant element is (1) Calcium (2) Silicon (3) Oxygen (4) Nitrogen

Description : The most abundant element is (1) Calcium (2) Silicon (3) Oxygen (4) Nitrogen

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In addition to hydrogen, the other abundant element present on Sun’s surface is - (1) Helium (2) Neon (3) Argon (4) Oxygen

Description : In addition to hydrogen, the other abundant element present on Sun’s surface is - (1) Helium (2) Neon (3) Argon (4) Oxygen

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In addition to hydrogen, the other abundant element present on Sun’s surface is (1) Helium (2) Neon (3) Argon (4) Oxygen

Description : In addition to hydrogen, the other abundant element present on Sun’s surface is (1) Helium (2) Neon (3) Argon (4) Oxygen

Last Answer : Helium

Which is abundant in Gobar gas? (1) Carbon dioxide (2) Methane (3) Oxygen (4) Hydrogen

Description : Which is abundant in Gobar gas? (1) Carbon dioxide (2) Methane (3) Oxygen (4) Hydrogen

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Description : Which is abundant in Gobar gas? (1) Carbon dioxide (2) Methane (3) Oxygen (4) Hydrogen

Last Answer : Methane

The greatest number of compounds are formed by the element (a) hydrogen (b) carbon (c) oxygen (d) nitrogen

Description : The greatest number of compounds are formed by the element (a) hydrogen (b) carbon (c) oxygen (d) nitrogen

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What is the most abundant gas in our atmosphere oxygen hydrogen nitrogen water?

Description : What is the most abundant gas in our atmosphere oxygen hydrogen nitrogen water?

Last Answer : It is nitrogen, followed by oxygen.

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 is the most common element in the Universe? (1) Nitrogen (2) Oxygen (3) Hydrogen (4) Carbon

Description : Which of the following is the most common element in the Universe? (1) Nitrogen (2) Oxygen (3) Hydrogen (4) Carbon

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Plastics are compounds of carbon with element (A) Hydrogen (B) Nitrogen (C) Oxygen (D) All of thes

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Description : Look at the following gases: 1. Carbon dioxide 2. Helium 3. Nitrogen 4. Oxygen The two most abundant gases in the atmosphere are: (a) 1 and 3 (b) 2 and 4 (c) 3 and 4 (d) 1 and 4

Last Answer : Ans:(c)

Two elements which can form a large number of compounds are (1) Carbon and Hydrogen (2) Carbon and Nitrogen (3) Carbon and Oxygen (4) Carbon and Sulphur

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Description : Which one of the following is a micro-element ? (1) Chlorine (2) Hydrogen (3) Nitrogen (4) Oxygen

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The highest volume of gases in lower atmosphere is comprised of - (1) Hydrogen (2) Carbon dioxide (3) Oxygen (4) Nitrogen

Description : The highest volume of gases in lower atmosphere is comprised of - (1) Hydrogen (2) Carbon dioxide (3) Oxygen (4) Nitrogen

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The bubbles in Chanmpagne and Soda are - (1) Nitrogen (2) Oxygen (3) Carbon dioxide (4) Hydrogen

Description : The bubbles in Chanmpagne and Soda are - (1) Nitrogen (2) Oxygen (3) Carbon dioxide (4) Hydrogen

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Silver gets corroded due to ______ in air. (1) Oxygen (2) Hydrogen Sulphide (3) Carbon dioxide (4) Nitrogen

Description : Silver gets corroded due to ______ in air. (1) Oxygen (2) Hydrogen Sulphide (3) Carbon dioxide (4) Nitrogen

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The name of unreactive gas is – (1) Carbon dioxide (2) Hydrogen (3) Nitrogen (4) Oxygen

Description : The name of unreactive gas is – (1) Carbon dioxide (2) Hydrogen (3) Nitrogen (4) Oxygen

Last Answer : (3) Nitrogen Explanation: Nitrogen is chemically unreactive because it has a strong triple bond which binds the two nitrogen atoms together making it harder for it to be broken. It does not burn, and at ordinary temperatures it does not react with other elements.

The gas that is used in the manufacture of vanaspati ghee is - (1) Oxygen (2) Carbon dioxide (3) Hydrogen (4) Nitrogen

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Description : The major constituent of air is – (1) nitrogen (2) carbon dioxide (3) oxygen (4) hydrogen

Last Answer : (1) nitrogen Explanation: Depending on various geographical locationsthese may change, but for the most part air is made up of 78% nitrogen (N2), 21% oxygen (O2), and trace amounts of ... and mostly inert diatomic gas at standard conditions, constituting 78.09% by volume of Earth's atmosphere.

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Description : Ozone consists of - (1) Oxygen only (2) Oxygen and Nitrogen (3) Hydrogen and Carbon (4) Oxygen and Carbon

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Carbon monoxide is an inflammable gas. Which one of the following is also inflammable? (1) Helium (2) Nitrogen (3) Oxygen (4) Hydrogen

Description : Carbon monoxide is an inflammable gas. Which one of the following is also inflammable? (1) Helium (2) Nitrogen (3) Oxygen (4) Hydrogen

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Which gas is used to manufacture vanaspati from vegetable oil is - (1) carbon dioxide (2) nitrogen (3) oxygen (4) hydrogen

Description : Which gas is used to manufacture vanaspati from vegetable oil is - (1) carbon dioxide (2) nitrogen (3) oxygen (4) hydrogen

Last Answer : (4) hydrogen Explanation: Hydrogen is used to manufacture vanaspati from vegetable oil.

Hydrocarbons are(a) Composed of carbon and hydrogen(b) Composed of carbon, hydrogen, and oxygen(c) Composed of carbon and oxygen(d) Composed of carbon and nitrogen

Description : Hydrocarbons are (a) Composed of carbon and hydrogen (b) Composed of carbon, hydrogen, and oxygen (c) Composed of carbon and oxygen (d) Composed of carbon and nitrogen

Last Answer : Composed of carbon and hydrogen

When vinegar and baking soda are mixed together, w gas is formed? w) oxygen x) nitrogen y) carbon dioxide z) hydrogen

Description : When vinegar and baking soda are mixed together, w gas is formed? w) oxygen x) nitrogen y) carbon dioxide z) hydrogen

Last Answer : ANSWER: Y -- CARBON DIOXIDE

Silver gets corroded due to ___ in air. (1) Oxygen (2) Hydrogen Sulphide (3) Carbon dioxide (4) Nitrogen

Description : Silver gets corroded due to ___ in air. (1) Oxygen (2) Hydrogen Sulphide (3) Carbon dioxide (4) Nitrogen

Last Answer : Hydrogen Sulphide

The highest volume of gases in lower atmosphere is comprised of (1) Hydrogen (2) Carbon dioxide (3) Oxygen (4) Nitrogen

Description : The highest volume of gases in lower atmosphere is comprised of (1) Hydrogen (2) Carbon dioxide (3) Oxygen (4) Nitrogen

Last Answer : Nitrogen

The name of unreactive gas is (1) Carbon dioxide (2) Hydrogen (3) Nitrogen (4) Oxygen

Description : The name of unreactive gas is (1) Carbon dioxide (2) Hydrogen (3) Nitrogen (4) Oxygen

Last Answer : Nitrogen

The gas that is used in the manufacture of vanaspati ghee is : (1) Oxygen (2) Carbon dioxide (3) Hydrogen (4) Nitrogen

Description : The gas that is used in the manufacture of vanaspati ghee is : (1) Oxygen (2) Carbon dioxide (3) Hydrogen (4) Nitrogen

Last Answer : Hydrogen

Ozone consists of (1) Oxygen only (2) Oxygen and Nitrogen (3) Hydrogen and Carbon (4) Oxygen and Carbon

Description : Ozone consists of (1) Oxygen only (2) Oxygen and Nitrogen (3) Hydrogen and Carbon (4) Oxygen and Carbon 

Last Answer : Oxygen only

Carbon monoxide is an inflammable gas. Which one of the following is also inflammable? (1) Helium (2) Nitrogen (3) Oxygen (4) Hydrogen

Description : Carbon monoxide is an inflammable gas. Which one of the following is also inflammable? (1) Helium (2) Nitrogen (3) Oxygen (4) Hydrogen

Last Answer : Hydrogen

The major constituent of air is (1) nitrogen (2) carbon dioxide (3) oxygen (4) hydrogen

Description : The major constituent of air is (1) nitrogen (2) carbon dioxide (3) oxygen (4) hydrogen

Last Answer : nitrogen

What is the first element in the periodic table? A. Hydrogen (Answer) B. Helium C. Nitrogen D. Carbon

Description : What is the first element in the periodic table? A. Hydrogen (Answer) B. Helium C. Nitrogen D. Carbon

Last Answer : A. Hydrogen (Answer)

Substances containing all the four elements: carbon, hydrogen nitrogen and oxygen are 1. Morphine 2. Nucleic acids 3. Starch 4. Quinine Select the correct answer by using the code below, (a) 2, 3 and 4 only (b) 1, 2 and 4 only (c) 1, 2, 3 and 4 (d) 1, 2 and 3 only

Description : Substances containing all the four elements: carbon, hydrogen nitrogen and oxygen are 1. Morphine 2. Nucleic acids 3. Starch 4. Quinine Select the correct answer by using the code below, (a) 2, 3 and 4 only (b) 1, 2 and 4 only (c) 1, 2, 3 and 4 (d) 1, 2 and 3 only

Last Answer : Ans:(b)

In which of the following groups, are the elements written in the descending order of their respective atomic weights? (a) Nitrogen, carbon, oxygen, hydrogen (b) Oxygen, argon, nitrogen, hydrogen (c) Oxygen, nitrogen, helium, hydrogen (d) Oxygen, nitrogen, helium, bromine

Description : In which of the following groups, are the elements written in the descending order of their respective atomic weights? (a) Nitrogen, carbon, oxygen, hydrogen (b) Oxygen, argon, nitrogen, hydrogen (c) Oxygen, nitrogen, helium, hydrogen (d) Oxygen, nitrogen, helium, bromine

Last Answer : Ans:(c)

Of all the gases present in the air, which one of the following is the highest in percentage? (a) Carbon dioxide (b) Hydrogen (c) Nitrogen (d) Oxygen

Description : Of all the gases present in the air, which one of the following is the highest in percentage? (a) Carbon dioxide (b) Hydrogen (c) Nitrogen (d) Oxygen

Last Answer : Ans:(c)