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

The most abundant element in the universe is thoug to be: w) carbon x) oxygen y) hydrogen z) nitrogen
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ANSWER: Y -- HYDROGEN
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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 : (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 ... . It is not surprising, therefore, that the living cell is between 60% and 90% water.

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

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.

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

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. However, after this, the rank of abundance does not continue to correspond to the atomic number; oxygen has abundance rank 3, but atomic number 8. All others are substantially less common.

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

Which of the following gases cannot be collected by water displacement? w) Nitrogen x) Oxygen y) Hydrogen z) Hydrogen Chloride

Description : Which of the following gases cannot be collected by water displacement? w) Nitrogen x) Oxygen y) Hydrogen z) Hydrogen Chloride

Last Answer : ANSWER: Z -- HYDROGEN CHLORIDE

Which of the following is produced when polyvinyl chloride is burned? w) Hydrogen Cyanide x) Hydrogen Chloride y) Nitrogen Oxide z) Oxygen

Description : Which of the following is produced when polyvinyl chloride is burned? w) Hydrogen Cyanide x) Hydrogen Chloride y) Nitrogen Oxide z) Oxygen

Last Answer : ANSWER: X -- HYDROGEN CHLORIDE 

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

A standardized base solution should be protected from which of the following gases? w) hydrogen x) carbon dioxide y) nitrogen z) argon

Description : A standardized base solution should be protected from which of the following gases? w) hydrogen x) carbon dioxide y) nitrogen z) argon

Last Answer : ANSWER: X -- CARBON DIOXIDE 

It is believed that carbon-14 in nature is slowly generated by the action of: w) protons on carbon-12 x) electrons on hydrogen y) cosmic rays on boron z) neutrons on nitrogen

Description : It is believed that carbon-14 in nature is slowly generated by the action of: w) protons on carbon-12 x) electrons on hydrogen y) cosmic rays on boron z) neutrons on nitrogen

Last Answer : ANSWER: Z -- NEUTRONS ON NITROGEN 

Dry ice is the solid form of what gas? w) nitrogen x) oxygen y) helium z) carbon dioxide

Description : Dry ice is the solid form of what gas? w) nitrogen x) oxygen y) helium z) carbon dioxide

Last Answer : ANSWER: Z -- CARBON DIOXIDE

Which of the following elements can form the great number of covalent bonds? w) carbon x) nitrogen y) oxygen z) sulfur

Description : Which of the following elements can form the great number of covalent bonds? w) carbon x) nitrogen y) oxygen z) sulfur 

Last Answer : ANSWER: Z -- SULFUR

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

Alpha particles are nuclei of: w) hydrogen x) helium y) oxygen z) nitrogen

Description : Alpha particles are nuclei of: w) hydrogen x) helium y) oxygen z) nitrogen

Last Answer : ANSWER: X -- HELIUM

Which two gases are used to disinfect water in sewage treatment facilities? w) helium and nitrogen x) ozone and chlorine y) oxygen and hydrogen z) nitrogen and chlorine

Description : Which two gases are used to disinfect water in sewage treatment facilities? w) helium and nitrogen x) ozone and chlorine y) oxygen and hydrogen z) nitrogen and chlorine 

Last Answer : ANSWER: X -- OZONE AND CHLORINE

If a scuba diver suffers from the "bends", this means that which gas is being rapidly released from the blood and tissues? w) oxygen x) hydrogen y) nitrogen z) CO2

Description : If a scuba diver suffers from the "bends", this means that which gas is being rapidly released from the blood and tissues? w) oxygen x) hydrogen y) nitrogen z) CO2

Last Answer : ANSWER: Y -- NITROGEN 

In which form is Silicon most frequently found in nature? w) The free element Silicon x) Silicon-Oxygen compounds y) Silicon-Carbon compounds z) Silicon-Metal compounds

Description : In which form is Silicon most frequently found in nature? w) The free element Silicon x) Silicon-Oxygen compounds y) Silicon-Carbon compounds z) Silicon-Metal compounds

Last Answer : ANSWER: X -- SILICON-OXYGEN COMPOUNDS

While many different gases are found in the atmosphere, a number do NOT contribute significantly to solar heating of the atmosphere. Which TWO of the following gases do NOT absorb much heat? w) carbon dioxide x) nitrogen y) water vapor z) oxygen

Description : While many different gases are found in the atmosphere, a number do NOT contribute significantly to solar heating of the atmosphere. Which TWO of the following gases do NOT absorb much heat? w) carbon dioxide x) nitrogen y) water vapor z) oxygen

Last Answer : ANSWER: X and Z -- NITROGEN and OXYGEN

Global climate change is being attributed to the atmospheric increase in what two gases produced by human activities? w) oxygen and hydrogen x) ozone and methane y) nitrous oxide and sulfur dioxide z) methane and carbon dioxide e) ozone and carbon monoxide

Description : Global climate change is being attributed to the atmospheric increase in what two gases produced by human activities? w) oxygen and hydrogen x) ozone and methane y) nitrous oxide and sulfur dioxide z) methane and carbon dioxide e) ozone and carbon monoxide

Last Answer : ANSWER: Z -- METHANE AND CARBON DIOXIDE

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

Last Answer : (2) Nitrogen Explanation: The most abundant gas in the Earth's atmosphere is nitrogen. Nitrogen makes up 78 percent of the Earth's atmosphere, and it is a permanent gas, which means that its percentage ... atmosphere is made up of 21 percent oxygen, 0.9 percent argon and 0.1 percent trace gases.

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

Last Answer : (3) Oxygen Explanation: On earth, oxygen is the most common element, making up about 47% of the earth's mass. Silicon is second, making up 28%, followed by aluminum (8%), iron (5%), magnesium (2% ... and potassium (3%). All of the remaining elements together make up less than 1% of the earth's mass.

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

Last Answer : Oxygen

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 : (1) Helium Explanation: The Sun is composed primarily of the chemical elements hydrogen and helium; they account for 74.9% and 23.8% of the mass of the Sun in the photosphere, respectively. All ... out of which it formed: the hydrogen and helium in the Sun were produced by Big Bang nucleosynthesis.

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

Last Answer : (2) Methane Explanation: Bio gas is a clean unpolluted and cheap source of energy in rural areas. It consists of 55-70% methane which is inflammable. Bio gas is produced from cattle dung in ... called digestion. It helps in reducing the deforestation as it arrests for cutting of trees for firewood.

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

Last Answer : Methane

The element used in treating manic depression is: w) sulfur x) nitrogen y) calcium z) lithium

Description : The element used in treating manic depression is: w) sulfur x) nitrogen y) calcium z) lithium

Last Answer : ANSWER: Z -- LITHIUM 

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.

Which one of the following is largest? w) the number of molecules in 2 grams of hydrogen gas x) the number of molecules in 60 grams of lead sulfate y) the number of molecules in 20 liters of oxygen gas at standard temperature and pressure z) the population of the United States

Description : Which one of the following is largest? w) the number of molecules in 2 grams of hydrogen gas x) the number of molecules in 60 grams of lead sulfate y) the number of molecules in 20 liters of oxygen gas at standard temperature and pressure z) the population of the United States

Last Answer : ANSWER: A - THE NUMBER OF MOLECULES IN 2 GRAMS OF HYDROGEN GAS  

Which of the following elements does not normally occur as a diatomic molecule? w) hydrogen x) chlorine y) argon z) oxygen

Description : Which of the following elements does not normally occur as a diatomic molecule? w) hydrogen x) chlorine y) argon z) oxygen

Last Answer : ANSWER: Y -- ARGON

Which of the following has a multiple covalent bond? w) Bromine x) Hydrogen y) Oxygen z) Chlorine Monofluoride

Description : Which of the following has a multiple covalent bond? w) Bromine x) Hydrogen y) Oxygen z) Chlorine Monofluoride

Last Answer : ANSWER: Y -- OXYGEN 

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

Last Answer : Ans:(b)

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

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

Last Answer : Answer: Option D

(2) it is lighter than air Explanation: Helium is the second lightest element and is the second most abundant element in the observable universe, being present at about 24% of the total elemental mass, which is more than 12 times the mass of all the heavier elements combined. A well-known but minor use is as a lifting gas in balloons and airships

Description : (2) it is lighter than air Explanation: Helium is the second lightest element and is the second most abundant element in the observable universe, being present at about 24% of the total elemental mass ... elements combined. A well-known but minor use is as a lifting gas in balloons and airships

Last Answer : Ammonial is a mixture of – (1) aluminium powder and ammonium nitrate (2) aluminium powder and ammonium chloride (3) aluminium powder and ammonium sulphate (4) aluminium powder and potassium nitrate

Which is the second most abundant element of the earth crust? a Oxygen b Nitrogen c Aluminium d Silicon e Calcium

Description : Which is the second most abundant element of the earth crust? a Oxygen b Nitrogen c Aluminium d Silicon e Calcium

Last Answer : c Aluminium

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

Which of the following would have the largest THIR ionization energy? Is it: w) Boron x) Carbon y) Nitrogen z) Magnesium

Description : Which of the following would have the largest THIR ionization energy? Is it: w) Boron x) Carbon y) Nitrogen z) Magnesium

Last Answer : ANSWER: Z -- MAGNESIUM

Which of the following gases is more soluble in water as the water temperature increases? w) Helium x) Air y) Carbon dioxide z) Hydrogen

Description : Which of the following gases is more soluble in water as the water temperature increases? w) Helium x) Air y) Carbon dioxide z) Hydrogen

Last Answer : ANSWER: W -- HELIUM

One source of Acid Rain is: w) sulfur in fossil fuels x) carbon in coal y) hydrogen in hydrocarbons z) chloroflorocarbons in aerosols

Description : One source of Acid Rain is: w) sulfur in fossil fuels x) carbon in coal y) hydrogen in hydrocarbons z) chloroflorocarbons in aerosols

Last Answer : ANSWER: W -- SULFUR IN FOSSIL FUELS

Teflon is produced by polymerizing ethylene which hydrogen substituted with one of the following elements: w) teflinium x) tin y) fluorine z) carbon

Description : Teflon is produced by polymerizing ethylene which hydrogen substituted with one of the following elements: w) teflinium x) tin y) fluorine z) carbon

Last Answer : ANSWER: Y -- FLUORINE

This noncombustible liquid in its dry form is noncorrosive to common metals except aluminum. About 90% of all of this material which is manufactured goes into the production of chlorofluorocarbons. Is this substance: w) carbon tetrachloride x) methylene chloride y) hydrogen chloride z) methyl fluoride

Description : This noncombustible liquid in its dry form is noncorrosive to common metals except aluminum. About 90% of all of this material which is manufactured goes into the production of chlorofluorocarbons. ... substance: w) carbon tetrachloride x) methylene chloride y) hydrogen chloride z) methyl fluoride

Last Answer : ANSWER: W -- CARBON TETRACHLORIDE

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

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)

Carbon monoxide is a poisonous gas for one of the following reasons. w) it is a powerful acid anhydride x) it combines with the hemoglobin of the blood y) it depletes the dissolved oxygen in the blood by forming carbon dioxide z) it is a strong oxidizing agent

Description : Carbon monoxide is a poisonous gas for one of the following reasons. w) it is a powerful acid anhydride x) it combines with the hemoglobin of the blood y) it depletes the dissolved oxygen in the blood by forming carbon dioxide z) it is a strong oxidizing agent

Last Answer : ANSWER: X -- IT COMBINES WITH THE HEMOGLOBIN OF THE BLOOD 

A waste product in the metabolism of glucose in cells is: w) oxygen x) methane y) carbon dioxide z) urea

Description : A waste product in the metabolism of glucose in cells is: w) oxygen x) methane y) carbon dioxide z) urea

Last Answer : ANSWER: C -- CARBON DIOXIDE