`X^(+),Y^(2+)and Z` are isoelectronic with `CO_(2)` . Increasing order of protons in `X^(+),Y^(2+)` and Z is :

1 Answer

Answer :

`X^(+),Y^(2+)and Z` are isoelectronic with `CO_(2)` . Increasing order of protons in `X^(+),Y^(2+)` and Z ... `ZltX^(+)ltY^(2+)` D. `Y^(2+)ltX^(+)ltZ`

Related questions

Description : An aqueous solution whose concentration effectivel matches the concentration of blood is said to be: w) isotopic x) isobaric y) isotonic z) isoelectronic

Last Answer : ANSWER: Y -- ISOTONIC

Description : Assertion :- Bond order of `O_(2)` and BN is same . Reason `O_(2) and BN` are isoelectronic

Last Answer : Assertion :- Bond order of `O_(2)` and BN is same . Reason `O_(2) and BN` are isoelectronic ... is False. D. If both Assertion & Reason are false

Description : Among the following groupings which represents the collection of isoelectronic species?

Last Answer : Among the following groupings which represents the collection of isoelectronic species? A. `NO^(+),C_(2)"^(2-),O,CO` ... `NO,CN^(-),N_(2),O_(2)^(-)`

Description : Which of the following pairs is NOT isoelectronic ?

Last Answer : Which of the following pairs is NOT isoelectronic? a. Na+ and Na b. Mg2+ and Ne c. Al3+ and B3+ d. P3- and N3-

Description : The dominant charge carriers in p-type semiconductors are: w) neutrons x) electrons y) protons z) holes

Last Answer : ANSWER: Z -- HOLES

Description : Photoelectric electricity is produced directly from solar energy when which of the following are absorbed in a semiconductor to create an electric current? w) protons x) electrons y) neutrons z) photons

Last Answer : ANSWER: Z -- PHOTONS

Description : In the equation of a nuclear reaction, all but one of the following quantities are equal to each other on both sides of the equation. Which quantity is NOT conserved: w) the net electric charge x) the total mass-energy y) the number of protons z) the number of nucleons

Last Answer : ANSWER: Y -- THE NUMBER OF PROTONS

Description : The binding energy of a nucleus is defined as one of the following. Is this definition: w) the energy equivalent to its mass x) the mass difference between its neutrons and protons y) the energy ... the difference between the mass of the nucleus and the sum of the masses of its protons and neutrons

Last Answer : ANSWER: Z -- THE DIFFERENCE BETWEEN THE MASS OF THE NUCLEUS AND THE UM 

Description : A high voltage applied to a gas discharge tube containing neon gas at very low pressure causes a current to flow through the tube. Which one of the following are the particles that flow towards the ... Are they w) electrons x) protons y) negatively charged neon ions z) positively charged neon ions

Last Answer : ANSWER: Z -- POSITIVELY CHARGED NEON IONS

Description : A metal ball on an insulated stand is touched by a positively charged glass rod. What happens to the metal ball? Does it w) gain protons and lose electrons x) gain protons y) gain more protons than electrons z) lose electrons

Last Answer : ANSWER: Z -- LOSE ELECTRONS

Description : In N-type semiconductors the majority of the carriers are: w) holes x) electrons y) protons z) neutrons 

Last Answer : ANSWER: X -- ELECTRONS

Description : Isotopes of an element have different numbers of: w) electrons x) protons y) neutrons z) leptons

Last Answer : ANSWER: Y -- NEUTRONS

Description : The neutrons in an atom: w) are part of the nuclear charge x) rotate about the nucleus in elliptical orbits y) vary in number with different isotopes z) are always equal in number to the total number of protons

Last Answer : ANSWER: Y -- VARY IN NUMBER WITH DIFFERENT ISOTOPES 

Description : The nuclei of heavy atoms generally contain: w) more electrons than neutrons x) more protons than electrons y) more neutrons than electrons z) more orbitals than electrons

Last Answer : ANSWER: Y -- MORE NEUTRONS THAN ELECTRONS

Description : The silver luster of the metals can be attributed to one of the following. It is attributed to their free w) protons x) ions y) neutrons z) electrons

Last Answer : ANSWER: Z -- ELECTRONS 

Description : An Arrhenius acid is a substance that: w) donates protons x) accepts protons y) donates hydrogen ions to water z) donates hydroxide ions to water

Last Answer : ANSWER: Y -- DONATES HYDROGEN IONS TO WATER 

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 

Description : Ammonia can be considered a Lewis base because it can donate: w) electrons x) protons y) hydronium ions z) hydroxide ions

Last Answer : ANSWER: A -- ELECTRONS

Description : The non-relativistic mass of an object w) must be the same as its weight x) depends on where you measure it y) does not change with increasing velocity z) is greatest at the poles

Last Answer : ANSWER: Y -- DOES NOT CHANGE WITH INCREASING VELOCITY

Description : If the resultant force acting on a body of constant mass is zero, the body's acceleration is: w) increasing x) decreasing y) always zero z) negative.

Last Answer : ANSWER: Y -- ALWAYS ZERO 

Description : A body which is attached to a spring undergoes simple harmonic motion. The magnitude of the body's acceleration is: w) constant x) proportional to its displacement from its equilibrium position y) zero z) always increasing.

Last Answer : ANSWER: X -- PROPORTIONAL TO ITS DISPLACEMENT FROM ITS EQUILIBRIUM POSITION 

Description : Ice skating is possible and practical because of a unique property of water. Is it because: w) The coefficient of kinetic friction of steel on frozen water decreases with decreasing temperature x ... sublimes y) The melting point decreases with increasing pressure z) Ice is a good thermal insulator 

Last Answer : ANSWER: Y -- THE MELTING POINT DECREASES WITH INCREASING PRESSURE 

Description : If the resultant force acting on a body of constant mass is zero, the body's momentum is: w) increasing x) decreasing y) always zero z) constant

Last Answer : ANSWER: Z -- CONSTANT

Description : As one goes across a period in the periodic table, the ionization energy generally increases for one of the following reasons. Is it because of the increasing w) atomic radius x) melting point y) nuclear charge z) density

Last Answer : ANSWER: Y -- NUCLEAR CHARGE

Description : Identify the product Z in the following sequence of reactions "`phenol" overset(NaOH)rarrX underset(4-7 atm, 410 K)overset(CO_(2))rarrY overset(H_(3)O

Last Answer : Identify the product Z in the following sequence of reactions "`phenol" overset(NaOH)rarrX ... Salicyladehyde C. Benzoic acid D. Salicylic acid

Description : Arrange `CFC, CH_(4), N_(2)O, and CO_(2)` in decreasing order according to their contribution in greenhouse effect:

Last Answer : Arrange `CFC, CH_(4), N_(2)O, and CO_(2)` in decreasing order according to their contribution in greenhouse ... (2)` D. `CO_(2)gtCH_(4)gtCFCgtN_(2)O`

Description : For an element , if atomic number (Z) and mass number (A) are 29 and 63 respectively . Then the number of protons , neutrons and electrons respectivel

Last Answer : For an element , if atomic number (Z) and mass number (A) are 29 and 63 respectively . Then the number of protons ... C. 29 , 34 ,29 D. 29 , 29 , 29

Description : In the compound given below: the correct order of acidity of the positions (X), (Y) and (Z) is :

Last Answer : In the compound given below: the correct order of acidity of the positions (X), (Y) and (Z) is : A. (Z) gt (X) ... gt (Z) gt (Y) D. (Y) gt (X) gt (Z)

Description : In a chemical reaction as shown in the bellow figure, it is observed that the (i) Rate of formation of 'P' is doubled on doubling the concentration of 'X' (ii) Rate of formation of 'P' is quadrupled ... of the above chemical reaction? (A) Zeroth order (B) First order (C) Second order (D) Third order

Last Answer : (D) Third order

Description : Planck's constant was first introduced in order to obtain a correct theoretical prediction of: w) the distribution of frequencies occurring in black body radiation. x) the energy produced by the transformation of mass into energy. y) the speed of light. z) lifetime of the neutron.

Last Answer : ANSWER: W -- THE DISTRIBUTION OF FREQUENCIES OCCURRING IN BLACK BODY RADIATION

Description : In order for fiber optics to work, the incident light inside the fiber must hit the wall of the fiber at: w) 90 degrees x) 45 degrees y) an angle greater than the critical angle z) none of the above

Last Answer : ANSWER: Y -- AN ANGLE GREATER THAN THE CRITICAL ANGLE 

Description : Nature tends to move toward states of: w) high energy and disorder x) high energy and order y) low energy and disorder z) low energy and order

Last Answer : ANSWER: Y -- LOW ENERGY AND DISORDER

Description : Radioactive decay is a: w) zero-order process x) temperature-dependent process y) first-order process z) second-order process

Last Answer : ANSWER: Y -- FIRST-ORDER PROCESS 

Description : `X underset("ether")overset(Mg)rarrY underset(H^(+))overset("Dry " CO_(2))rarr X overset("hot " KMnO_(4))rarrP` The two isomeric compounds which will

Last Answer : `X underset("ether")overset(Mg)rarrY underset(H^(+))overset("Dry " CO_(2))rarr X overset("hot " KMnO_(4)) ... B. III and IV C. I and IV D. II and III

Description : Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the major product. X on treatment with `(

Last Answer : Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the ... `H_(2)SO_(4)` produces B. C. D.

Description : Indicate the correct arrangement for electromagnetic radiation in order of their increasing wavelength. (1) Microwave, infrared, visible. X-rays (2) X-rays, visible, infrared, microwave (3) Visible, infrared, microwave, X-rays (4) X-rays, infrared, visible, microwave

Last Answer : (4) X-rays, infrared, visible, microwave Explanation: The Electromagnetic spectrum in order of decreasing energy, thus increasing wavelength : Gamma Rays-wavelength: 0.01 nm ; X-rays -1 nm ; Ultra-violet Rays-0.1 ... -10 m ; and Very High Frequency (VHF) and Ultra High Frequency (UHF): 10 m-10 cm.

Description : Indicate the correct arrangement for electromagnetic radiation in order of their increasing wavelength. (1) Microwave, infrared, visible. X-rays (2) X -rays, visible, infrared, microwave (3) Visible, infrared, microwave, X-rays (4) X - rays, infrared, visible, microwave.

Last Answer : X - rays, infrared, visible, microwave.

Description : In case of binary distillation, increasing the reflux ratio above optimum does not result in the increase of (A) Area between operating line and 45° diagonal x-y diagram (B) Condenser and reboiler surfaces (C) Tower cross-section (D) None of these

Last Answer : (A) Area between operating line and 45° diagonal x-y diagram

Description : A beam of protons with a velocity of `4 X 10 ^5 ms^(-1)` enters a uniform magnetic field of 0.3 T. The velocity makes an angle of `60^@` with the magn

Last Answer : A beam of protons with a velocity of `4 X 10 ^5 ms^(-1)` enters a uniform magnetic field of 0.3 T. The ... ` B. `0.012m` C. `0.024m` D. `0.048m`

Description : Electro magnetic radiation is emitted by (a) X-ray (b) Electrons (c) Ultrasonic (d) Protons

Last Answer : Ans:(b)

Description : Assertion `:-` In the alveoli, dissociation of `CO_(2)` from carbamino-haemoglobin takes place Reason `:-` In the alveoli `P_(CO_(2))` is low and `P_(

Last Answer : Assertion `:-` In the alveoli, dissociation of `CO_(2)` from carbamino-haemoglobin takes place Reason ` ... . D. If both Assertion & Reason are false.

Description : Assertion` :-` Major part of `CO_(2)` is transported in the form of sodium bicarbonate. Reason `:-` 0.3 ml of `CO_(2)` is transported per 100ml of blo

Last Answer : Assertion` :-` Major part of `CO_(2)` is transported in the form of sodium bicarbonate. Reason `: ... False. D. If both Assertion & Reason are false.

Description : Assertion `:-` Bohr effect occur at the level of alveoli of lungs. Reason `:-` High concentratio of `CO_(2)` allow dissociation of oxyhaemoglobin.

Last Answer : Assertion `:-` Bohr effect occur at the level of alveoli of lungs. Reason `:-` High concentratio ... False. D. If both Assertion & Reason are false.

Description : Assertion `:-` The blood transports carbondioxide comparatively easily. Reason `:-` During `CO_(2)` transport chloride ions diffuse from plasma into t

Last Answer : Assertion `:-` The blood transports carbondioxide comparatively easily. Reason `:-` During `CO_(2)` ... D. If both Assertion & Reason are false.

Description : Assertion `:-` In the tissue high `P_(O_(2))`, low `P_(CO_(2))`, higher `H^(o+)` concentration conditions are favourable for dissociation of oxygen fr

Last Answer : Assertion `:-` In the tissue high `P_(O_(2))`, low `P_(CO_(2))`, higher `H^(o+)` ... Reason is False. D. If both Assertion & Reason are false.

Description : Assertion `:-` The amount of `CO_(20` that can diffuse through the diffusion membrane per unit differnece in partial pressure is much higher compared

Last Answer : Assertion `:-` The amount of `CO_(20` that can diffuse through the diffusion membrane per unit ... . D. If both Assertion & Reason are false.

Description : In Lungs there if definity exchange of ions between RBC and Plasma. Removal of `CO_(2)` from blood involves -

Last Answer : In Lungs there if definity exchange of ions between RBC and Plasma. Removal of `CO_(2)` from blood involves ... efflux of `HCO_(3)^(c-)` ions from RBC

Description : Blood do not become acidic although it carries `CO_(2)` because `:-`

Last Answer : Blood do not become acidic although it carries `CO_(2)` because `:-` A. `CO_(2)` is continously ... important role D. `CO_(2)` is absorbed by WBC

Description : In which the following factors can interfere in binding of `O_(2)` with haemoglobin. `A-P_(CO_(2))` `B-H^(+)` ion concentration C-Temperture

Last Answer : In which the following factors can interfere in binding of `O_(2)` with haemoglobin. `A-P_(CO_(2))` `B-H^(+)` ion ... A B. B,C C. A and C D. A,B,C

Description : Bulk of carbon dioxide `(CO_(2))` released from body tissues into the blood is present as

Last Answer : Bulk of carbon dioxide `(CO_(2))` released from body tissues into the blood is present as A ... . `70%` carbamino-haemoglobin and `30%` as bicarbonate