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 : Iron which resembles Cobalt and Nickel in properties has been placed far away from these elements. This was one of the limitations of : (1) Modern periodic table (2) Newland's law of octaves (3) Dobereiner's triads (4) Mendeleev's periodic table
Last Answer : (2) Newland's law of octaves Explanation: Among the major limitations of Newlands Law of Octaves, some similar elements have been separated from one another while some dissimilar elements have been placed in the same column.
Description : Which of the following is true regarding Newland’s Law of Octaves? (1) It worked well with only lighter elements. (2) It was applicable only up to calcium. (3) Both are correct (4) Both are incorrect. (4)
Last Answer : (3) Both are correct Explanation: Both the statements are correct. Hence, option C is correct.
Description : Law of octaves says that if the chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of elements
Last Answer : 7
Description : State Newland’s law of Octaves.
Last Answer : New land law of octaves states that “When elements are arranged in the order of increasing atomic mass, the properties of the eighth element (starting from any given element) are a repetition of the properties of the first element”
Description : what is Newlands' law of octaves? Explain with example
Last Answer : what is Newlands' law of octaves? Explain with example
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 : NEWLAND’S OCTAVES
Last Answer : After failure of Dobereiner's triads, newland's octaves classification was done. 56 elements were discovered. Elements are arranged in an increasing order of their atomic masses. Every ... later several elements were known. It not includes inert gases because they were not discovered.
Description : This scientist gave the law- ‘Properties of elements are a periodic function of their atomic number.’ This property of the fundamental importance of atomic number was discovered by- (1) Johann Wolfgang Döbereiner (2) John Newlands (3) Dmitri lvanovich Mendeléev (4) Henry Moseley
Last Answer : (4) Henry Moseley Explanation: In 1913, Henry Moseley showed that the atomic number of an element is a more fundamental property than its atomic mass as described below.
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 : What similarity was observed by Newland in the properties of elements and octaves of music?
Last Answer : When Newland arranged the elements, he found that the properties of eighth element resembled the properties of the first element, This repetition in the properties is just like the repetition of eighth note in an octave of music. (sarega ma pa da nisa)
Description : The periodicity of repetition of properties in Newland’s law was
Last Answer : eight.
Description : The names of the scientists, Newlands, Mendeleev and Meyer are associated with the development of (a) Atomic structure (b) Metallurgy (c) Periodic table of elements (d) Discovery of elements
Last Answer : Ans:(c)
Description : Newlands' table, the elements were placed with the halogens - (1) Mn and As (2) Fe and Se (3) Ce and La (4) Co and Ni
Last Answer : (4) Co and Ni Explanation: Newlands' Law of Octaves suffered from lot of limitations, In order to fit elements into his table, Newlands ad justed two elements in the same slot, but also put some unlike elements under the same note.
Description : Sound and light waves both _______. (1) have similar wavelength (2) obey the laws of reflection (3) travel as longitudinal waves (4) travel through vacuum
Last Answer : (2) obey the laws of reflection Explanation: The two laws of reflection of light are applicable to sound waves as well. The incident wave, the normal to the reflecting surface and the reflected wave at the point of incidence lie in the same plane.
Description : Law of octaves was propounded by?
Last Answer : John Newland
Description : What are the limitations of Newland law of Octaves?
Last Answer : Newland law of octaves could not be extended after 17 elements.
Description : Why Newland law of octaves is called so?
Last Answer : As Newland law is similar to the octaves in music, he called the law as law of octaves.
Description : Who gave the 'law of octaves'?
Last Answer : Ethanoic acid
Description : What principle that the king had to obey the law was firmly established which document?
Last Answer : Feel Free to Answer
Description : What is the penalty for refusing to obey Church's law?
Last Answer : The answer depends on the particular church and the nature ofthe violation of church law.
Description : All materials obey Hooke's law within elastic limit. When elastic limit is reached, the tensile strain (A) Increases very quickly (B) Decreases very quickly (C) Increases in proportion to stress (D) Decreases in proportion to stress
Last Answer : (A) Increases very quickly
Description : Pick out the wrong statement. (A) The mole fraction of solute is directly proportional to the molality of a 'dilute' solution (B) For a non-reacting binary mixture of ideal gases, the partial ... at all temperature (D) The relative volatility of a binary mixture at the Azeotropic composition is 1
Last Answer : (C) Azeotropes obey Raoult's law at all temperature
Description : Pick out the correct statement. (A) Materials exhibiting high elasticity obey Hooke's law (B) The elastic behaviour of rubber under compression is the same as its behaviour under tension (C) ... to its plastic deformation (D) The stress required to cause plastic flow in polycrystalline material is
Last Answer : Option B
Description : Light waves obey what law?
Last Answer : The law of reflection.
Description : A spring with a force constant of 20 newtons per meter is known to obey Hooke's Law. The spring is attached to a mass of 5 kilograms and placed on a horizontal, frictionless surface. The ... and released. What is the kinetic energy of the mass as it passes through its equilibrium position?
Last Answer : ANSWER: 90 JOULES
Description : A certain spring is known to obey Hooke's Law. If a force of 10 newtons stretches the spring 2 meters, how far will a 30 newton force stretch the spring?
Last Answer : ANSWER: 6 METERS
Description : Does the linear circuit obey Ohm's law?
Last Answer : Yes linear circuit obey Ohm's law and nonlinear circuit not satisfied Ohm's law.
Description : a) What is meant by periodicity in properties of elements with reference to the periodic table? (b) Why do all the elements of the same group have similar properties? (c) How will the tendency to gain electrons change as we go from left to right across a period? Why? -Science
Last Answer : (a) The repetition of same properties after definite interval is called periodicity in properties. (b) It is because they have same valence electrons therefore, have similar properties. (c) ... to right in a period because atomic size goes on decreasing and effective nuclear charge increases.
Description : An arrangement of elements with similar properties placed together is called?
Last Answer : Periodic Table
Description : Why the elements belonging to the same group do have similar chemical properties ?
Last Answer : Why the elements belonging to the same group do have similar chemical properties?
Description : Which of the following pair of elements has similar properties ?
Last Answer : Which of the following pair of elements has similar properties? a. 13, 31 b. 11, 20 c. 12, 10 d. 21, 33
Description : What elements have similar properties with krypton?
Last Answer : What is the answer ?
Description : The names of the scientists; Newlands; Mendeleev; and Meyer are associated with the development of?
Last Answer : periodic table of contents
Description : Why did Newlands place Hydrogen in the that octave?
Description : Properties of elements X: (i) Its amide is used as a reducing agent (ii) Its amalgam is used as reducing agent Properties of element Y: (i) It is an o
Last Answer : Properties of elements X: (i) Its amide is used as a reducing agent (ii) Its amalgam is ... in its maximum oxidation state is neutral in aq. Medium
Last Answer : Properties of elements X: (i) Its amide is used as a reducing agent (ii) Its amalgam is used as ... oxidation number of Y in this compound is `+4`
Last Answer : Properties of elements X: (i) Its amide is used as a reducing agent (ii) Its amalgam is used as reducing agent ... 3` and `+5` D. `-2` and `+4`
Description : Name the person who developed a table of elements which revealed regularities in elemental properties in 1869? w) Theodore Richards x) Antoine Lavoisier y) Dmitri Mendeleev z) Svante Arrhenius
Last Answer : ANSWER: Y -- DMITRI MENDELEEV
Description : In the frequency theory of smell how many octaves can a human detect?
Last Answer : It is not possible to rank smells on a single scale the way we do for sound. There are different combinations of chemicals that can be detected. I suppose we could compare a human's capabilities ... , and taking a dog's sensitivity as four octaves, express human capability as some fraction of that.
Description : A frequency of 3000 Hz has how many octaves above 1000 Hz? A. 1.6 octaves B. 2.1 octaves C. 1 octave D. 3 octaves
Last Answer : A. 1.6 octaves
Description : What frequency is 10 octaves above 30 Hz? A. 30.72 kHz B. 30 kHz C. 300 Hz D. 307.2 kHz
Last Answer : A. 30.72 kHz
Description : The basic voice band has how many octaves? A. 10 B. 4 C. 5 D. 3
Last Answer : B. 4
Description : Isoenzymes are (A) Chemically, immunologically and electrophoretically different forms of an enzyme (B) Different forms of an enzyme similar in all properties (C) Catalysing different reactions (D) Having the same quaternary structures like the enzymes
Last Answer : Answer : A
Description : The periodic law states that the properties of elements will repeat when the elements are arranged by _______.?
Last Answer : increasing atomic number
Description : Did your dogs always obey you?
Last Answer : When they see me holding the treats they'll always enthusiastically obey me. Without treats they'll look at me for a moment then decide whether or not they would like to comply. If I want them to obey ... then I'll have to raise my voice and sound angry then they'll do it while looking apologetic.
Description : Will you obey your partner's demand to limit your friendship?
Last Answer : No. Maybe because it's that I am old (a person in their 20s might have a different attitude), but no way would I stop being friends with an old chum (male or female) just because my current ... I cannot imagine being with a partner who would be audacious enough to make the demand in the first place.
Description : A brilliant Engineer offers to make you one object, it must obey the Laws of Physics, it can be any one object you choose, so what object would you choose?
Last Answer : The perfect automobile. Impeccable suspension, engine, drivetrain etc.
Description : Is it possible to train arthropods to obey basic human voice commands?
Last Answer : answer:I would say (I'm not schooled in this field, but I do know some information) arthropods, over the years have developed different parts of their brains to adapt. Taste & smell are more important & ... answer I can provide based on what little I know. Sorry I don't know much about the subject.
Description : "Your're under our roof, so you have to obey us" What does that have to do with obedience?
Last Answer : I suppose a good way to resolve this would be to offer to pay your parents’ mortgage for the month so you could do whatever you want.