Description : ________ is naturally occurring inorganic substance found deep under the surface of the earth. a) ore b)mineral c)metal d)non-metal
Last Answer : b)mineral
Description : A rock is (A)a naturally occurring, hard, solid substance (B) any hard, solid substance on earth (C)an aggregate of minerals (D)only produced by cooling of magma
Last Answer : an aggregate of minerals
Description : a naturally occurring force related to two bodies in motion is _______ force. -General Knowledge
Last Answer : A naturally occurring force related to two bodies in motion is frictional force.
Description : Q: Which is the hardest naturally occurring substance on the Earth? -General Knowledge
Last Answer : Diamond is the ans
Description : What is the mass in grams of 9.76 x 1012 atoms of naturally occurring sodium?
Last Answer : The mass is 1,62.10e-11.
Description : In this case scientists have copied a type of naturally occurring genetic mutation called?
Last Answer : Feel Free to Answer
Description : What is the Naturally occurring short circular pieces of DNA?
Last Answer : Need answer
Description : All following are naturally occurring nucleotides except (A) Cyclic AMP (B) ATP (C) DNA (D) Inosine monophosphate
Last Answer : Answer : C
Description : Naturally occurring amino acids have (A) L-Configuration (B) D-Configuration (C) DL-Configuration (D) None of these
Last Answer : Answer : A
Description : Pentagastrin is a (A) Naturally occurring form of gastrin (B) Inactive metabolite of gastrin (C) Active metabolite of gastrin (D) Synthetic form of gastrin
Last Answer : Answer : D
Description : Which of the following statements is not true about diamonds? (a) It is the purest form of carbon (b) It is the hardest naturally occurring substance (c) It is a good conductor of ... diamonds can be prepared by subjecting a solution of pure carbon in iron to very high pressures and temperatures
Last Answer : Ans:(c)
Description : The heaviest naturally occurring element is: (1) Mercury (2) Poloni (3) Thorium (4) Uranium
Last Answer : (4) Uranium Explanation: The heaviest element in terms of heaviest per a given number of atoms is the element with the highest atomic weight. This is the element with the larg st number of ... man-made. The heaviest naturally-occurring element is uranium (atomic number 92, atomic weight 238.0289).
Description : Which naturally occurring element in the rice husk makes it termite resistant?
Last Answer : Silicon
Description : Naturally occurring aluminium silicate is?
Last Answer : Mica
Description : Naturally occurring compound of Beryl- lium?
Last Answer : Emerald
Description : Which of the following is not a naturally occurring nuclear fuel? (A) Uranium-238 (B) Thorium-233 (C) Plutonium-239 (D) None of these
Last Answer : (C) Plutonium-239
Description : The number of naturally occurring ele- ments?
Last Answer : 92
Description : In making beer, in the process of ____ barley grains are steeped in water while naturally occurring enzymes digest the starch to simpler carbohydrates. a. steeping b. mashing c. maltng d. worting
Last Answer : c. maltng
Description : When the Exxon Valdez oil spill occurred, technologists "fertilized" the oil-soaked water with _____ to modify the environment and stimulate he growth of naturally occurring microorganisms. a. nitrogen sources (e.g., urea) b. phosphorus compounds c. other mineral nutrients d. A-C above are correct
Last Answer : d. A-C above are correct
Description : The five elements present in most naturally occurring proteins are : (a) C, H, O, P, and S (b) N, C, H, O, and I (c) N, S, C, H, and O (d) C, H, O, S, and I
Last Answer : N, S, C, H, and O
Description : Which of the following statements is not true about fatty acids? (a) Fatty acids are carboxylic acids with long hydrocarbon side chains. (b) The double bonds in unsaturated fatty acids are always ... contain even numbers of carbons and are unbranched. (d) Fatty acids can be saturated or unsaturated
Last Answer : The double bonds in unsaturated fatty acids are always conjugated
Description : The heaviest naturally occurring element is?
Last Answer : Uranium
Description : Naturally occurring ____ play a role in food coloring. a. enzymes c. pigments b. sugars d. carbohydrates
Last Answer : c. pigments
Description : What naturally occurring radioactive element is so common in homes that testing for its presence is often advisable?
Last Answer : ANSWER: RADON
Description : What naturally occurring radioactive substance present in indoor air is suspected as the second leading cause of lung cancer?
Description : It is a common observation that naturally occurring processes have a particular direction associated with them. For instance, heat flows from a hot body to a colder body. The property of a system ... this natural direction of events is called w) energy x) entropy y) enthalpy z) equilibrium
Last Answer : ANSWER: X -- ENTROPY
Description : The heaviest naturally occurring element is: (1) Mercury (2) Polonium (3) Thorium (4) Uranium
Description : The inorganic elements or compounds which occur naturally in the earth’s crust are known as?
Last Answer : minerals
Description : White crystalline solid (A) reacts with `H_2` to form a highly associated liquid (B) and a monoatomic , colourless gas (C ). The liquid (B) is used fo
Last Answer : White crystalline solid (A) reacts with `H_2` to form a highly associated liquid (B) and a ... has only unpaired electron in `pi` molecular orbital.
Last Answer : White crystalline solid (A) reacts with `H_2` to form a highly associated liquid (B) and a ... metallic bonds D. ionic, covalent and Hydrogen bonds
Last Answer : White crystalline solid (A) reacts with `H_2` to form a highly associated liquid (B) and a monoatomic , colourless gas ... 3)d` D. V - shape, `sp^(3)`
Description : A crystalline solid X reacts with dilute HCl to liberate a gas Y. The gas Y decolourises acidified `KMnO_(4)`. When a gas Z is slowly passed into aque
Last Answer : A crystalline solid X reacts with dilute HCl to liberate a gas Y. The gas Y decolourises acidified `KMnO_(4)`. When ... 2)S` D. `Na_(2)SO_(4),SO_(2)`
Description : Is a marshmallow a crystalline solid?
Last Answer : Marshmallows are amorphous solids.
Description : Glass is - (1) Super cooled liquid (2) Crystalline solid (3) Liquid crystal (4) None of these
Last Answer : (1) Super cooled liquid Explanation: Glass is sometimes called a Super cooled liquid because it does not form a crystalline structure, but instead forms an amorphous solid that allows molecules in the material to continue to move.
Description : Pick out the correct statement. (A) Plastics are good conductors of heat and electricity (B) All the polymers are highly crystalline in nature (C) Polymers can be vaporised by heating to ... D) The liquid polymer becomes greasy, then waxy and finally solid on increasing the degree of polymerisation
Last Answer : (D) The liquid polymer becomes greasy, then waxy and finally solid on increasing the degree of polymerisation
Description : The behaviour of visco-elastic material is time dependent. This behaviour is common in __________ materials. (A) Non-crystalline solid (B) Crystalline (C) Rubbery (D) Non-crystalline organic polymeric
Last Answer : (D) Non-crystalline organic polymeric
Description : Visco-elastic behaviour of materials which is time dependent is common in (A) Plastics (B) Crystalline solid (C) Non-crystalline solids (D) Non-crystalline organic polymer
Last Answer : (D) Non-crystalline organic polymer
Description : Predict the entropy change in- (i) A liquid crystallizes into solid (ii) Temperature of a crystalline solid raised from 0K to 115K.
Last Answer : Ans. (i) Entropy decreases because molecules attain an ordered state. (ii) Entropy increases because from 0K to 115K average kinetic of moleculesincreases.
Description : Which of the following statements is False about acetamide? (a) reacts with Br2/NaOH to form tertiary amine (b) undergoes acid-hydrolysis to form acetic acid (c) undergoes dehydration with P2O5 to form a nitrile (d) is a white crystalline solid, soluble in water
Last Answer : reacts with Br2/NaOH to form tertiary amine
Description : The third law of thermodynamics states that the (A) Heat capacity of a crystalline solid is zero at absolute zero temperature (B) Heat transfer from low temperature to high temperature source is ... without external work (C) Gases having same reduced properties behaves similarly (D) None of these
Last Answer : (A) Heat capacity of a crystalline solid is zero at absolute zero temperature
Description : The two elements required to form substitutional solid solution should not have (A) Same crystalline structure (B) Same valency (C) Widely differing electronegativity (D) Same atomic sizes
Last Answer : C) Widely differing electronegativity
Description : Non-volatile heavy metals in kiln are fixed into ____ a) Clinker’s crystalline structure b) Fumes c) Solid lump d) Slag
Last Answer : Clinker’s crystalline structure
Description : A solid in which there is no regular arrangement of molecules is a) Amorphous b) Crystalline c) Copper d) None of above
Last Answer : a) Amorphous
Description : Which of the following is a crystalline solid? a) Copper b) NaCl c) Zirconia d) All of above
Last Answer : d) All of above
Description : A solid is which atoms are in a regular order is called a) Crystalline solid b) Amorphous solid c) Polymeric solid d) Glassy solid
Last Answer : a) Crystalline solid
Description : Which one is the rate controlling step in a solid-gas non-catalytic reaction occurring at very high temperature? (A) Pore diffusion (B) Film diffusion (C) Ash layer diffusion (D) Chemical reaction
Last Answer : (B) Film diffusion
Description : Equilibrium moisture of a solid is equal to the total moisture minus free moisture. Which of the following substances will have maxi-mum equilibrium moisture? (A) Anthracite coal (B) Rag paper (C) Bamboo (D) Inorganic solids
Last Answer : (C) Bamboo
Description : The function of skimming tank in sewage treatment is to remove __________ substances. (A) Dissolved solid (B) Suspended solid (C) Oil & fatty (D) Gritty & inorganic
Last Answer : (C) Oil & fatty
Description : Pick out the wrong statement. (A) Cp of monatomic gases such as metallic vapor is about 5 kcal/kg.atom (B) The heat capacity of solid inorganic substance is exactly equal to the ... isolated system (D) At absolute zero temperature, the heat capacity for many pure crystalline substances is zero
Last Answer : (C) There is an increase in entropy, when a spontaneous change occurs in an isolated system
Description : In what three components of Earth's makeup must we find the total mass of crystalline rock components that were eroded from the primary crystalline rocks of earth's surface?
Last Answer : answer:What are the components of Earth’s makeup? How many are there? Wouldn’t it be the components nearest the surface (e.g., crust, lithosphere, asthenosphere)? Keep in mind, I have no idea what I’m talking about.