Chemistry-
General
Easy
Question
Which of the following is iso-electronic:
- CO2,NO2
- NO2,CO2
- CN–,CO
- SO2,CO2
The correct answer is: CN–,CO
Related Questions to study
chemistry-
The de-Broglie wavelength associated with a particle of mass10-6kg moving with a velocity of 10ms–1,is-
The de-Broglie wavelength associated with a particle of mass10-6kg moving with a velocity of 10ms–1,is-
chemistry-General
physics-
STATEMENT–1 : In the duration electron jumps from first excited state to ground state in a stationary isolated hydrogen atom, angular momentum of the electron about the nucleus is conserved
STATEMENT–2 : As the electron jumps from first excited state to ground state, in a hydrogen atom, the electrostatic force on electron is always directed towards the nucleus.
STATEMENT–1 : In the duration electron jumps from first excited state to ground state in a stationary isolated hydrogen atom, angular momentum of the electron about the nucleus is conserved
STATEMENT–2 : As the electron jumps from first excited state to ground state, in a hydrogen atom, the electrostatic force on electron is always directed towards the nucleus.
physics-General
physics-
A beam of electrons striking a copper target produces X-rays.Its spectrum is as shown Keeping the voltage same if the copper target is replaced with a different metal, the cut-off wavelength and characteristic lines of the new spectrum will change in comparision with old as :
A beam of electrons striking a copper target produces X-rays.Its spectrum is as shown Keeping the voltage same if the copper target is replaced with a different metal, the cut-off wavelength and characteristic lines of the new spectrum will change in comparision with old as :
physics-General
biology
-oxidation takes place in
-oxidation takes place in
biologyGeneral
biology
Which 5-carbon organic acid of TCA-cycle is key compound in N2 -metabolism ?
Which 5-carbon organic acid of TCA-cycle is key compound in N2 -metabolism ?
biologyGeneral
biology
FADH2 Produced in Kreb’s-cycle from
FADH2 Produced in Kreb’s-cycle from
biologyGeneral
chemistry-
If change in energy: (
)=3×10–8J,h=6.64 × 10–34 J–s and c=3×108m/s, then wavelength of the line is
If change in energy: ()=3×10–8J,h=6.64 × 10–34 J–s and c=3×108m/s, then wavelength of the line is
chemistry-General
chemistry-
lonization energy of second orbit of Li+2eV
lonization energy of second orbit of Li+2eV
chemistry-General
chemistry-
The energy of H- atom in nth orbit is En then energy in nth orbit of singly ionised helium atom will be :
The energy of H- atom in nth orbit is En then energy in nth orbit of singly ionised helium atom will be :
chemistry-General
chemistry-
An element M has 25 protons. The number of electrons in itsM+2 cation will be:
An element M has 25 protons. The number of electrons in itsM+2 cation will be:
chemistry-General
physics-
A parallel beam of monochromatic radiation of cross-section area A( < p a 2), intensity I and is incident on a solid conductingnfrequency 0fsphere of work function 
and radius 'a' The sphere is grounded by a conducting wire Assume that for each incident photon one photoelectron is ejected Just after this radiation is incident on initially uncharged sphere, the current through the conducting wire is:
A parallel beam of monochromatic radiation of cross-section area A( < p a 2), intensity I and is incident on a solid conductingnfrequency 0fsphere of work function and radius 'a' The sphere is grounded by a conducting wire Assume that for each incident photon one photoelectron is ejected Just after this radiation is incident on initially uncharged sphere, the current through the conducting wire is:
physics-General
biology
Which of the following is 5-carbon compound of Kreb’s cycle
Which of the following is 5-carbon compound of Kreb’s cycle
biologyGeneral
biology
Which of the following cytochrome donated electron to oxygen
Which of the following cytochrome donated electron to oxygen
biologyGeneral
biology
Which of the follwing ETS complex is inhibited by cyanide
Which of the follwing ETS complex is inhibited by cyanide
biologyGeneral
biology
Green plants kept in light produce ATP from the glucose. This process is
Green plants kept in light produce ATP from the glucose. This process is
biologyGeneral
