Account for: Mno is basic whereas Mn2O7 is acidic in nature why
MnO is basic and Mn2O7 is acidic because the oxide in the lower oxidation state of a metal is basic... View Article
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Why is biogas called an excellent fuel
Biogas is considered an ideal fuel because of the following reasons:<ul>a) Biogas does not contribute to air pollution since it... View Article
Clouds are colloidal dispersions of : a) solid in air b) water in air c) air in solid d) air in water
Option b) water in air. The clouds are composed of positive as well as negatively charged particles of water dispersed... View Article
The energy of an electron of 2py orbital is a) less than 2pz orbital b) same as that of 2px and 2pz orbitals c) greater than 2px orbital d) equal to 2s orbital
Option b) same as that of 2px and 2pz orbitals. The energy of an electron of 2py orbital is the... View Article
Corpus callosum connects a) Two cerebral hemispheres b) Two optic thalamus c) Two cerebellar hemispheres d) Two ventricles of the brain
Option a) Two cerebral hemispheres. The cerebrum is divided into the right and left cerebral hemispheres. These two sides of... View Article
Radioactive halogen is: a) Cn b) Br c) Po d) At
Option d) At. Astatine (At) element of halogen group is radioactive.
The total energy of the body executing SHM is E. Then the kinetic energy when the displacement is half of the amplitude is?
Total energy in SHM E = 1/2 mw<sup>2</sup>a</sup>2</sup> Potential energy U = 1/2 mw<sup>2</sup>(a<sup>2</sup>-y<sup>2</sup> = E-1/2mw<sup>2</sup>y<sup>2</sup> U=E-1/2mw<sup>2</sup>(a<sup>2</sup>/4)=E-E/4=3E/4
4.5 g of aluminium is deposited at cathode from Al3+ solution by a certain quantity of electric charge. The volume of hydrogen produced at STP from H+ ions is solution by the same quantity of electric charge will be?
No.of equivalents of aluminium deposited = 4.5/9 = 0.5 No.of equivalents of H2 will also be 0.5 Volume of H2... View Article
Collective noun for clothes
The collective noun for clothes is suit. A rack of clothes, a bundle of clothes, and a closet of clothes... View Article
Dividend is paid on capital
Dividend is paid on ______ capital issued paid up called none of these The correct option is ii. paid up
Define potential gradient. Write Kirchhoff’s junction rule and for the given diagram write the value of current I.
Potential gradient is defined as the rate of change of potential with respect to displacement. It is mathematically expressed as:... View Article
Find the value x for a given trigonometric equation
Given: To find the value of sec<sup>-1</sup>[sec(-30°0] Solution: Let sec<sup>-1</sup>[sec(-30°)]=x sec x = sec(-30°) sec x = sec(30°) sec(-θ)=secθ sec... View Article
Digital circuit can be made by repetitive use of
Digital circuit can be made by repetitive use of? OR gates NAND gates NOT gates AND gates The correct option... View Article
What are you doing there? Here there is a or an?
What are you doing there? Here ‘there’ is a or an? verb adjective adverb noun The correct option is iii.... View Article
Which of the following element has the maximum electron affinity
Which of the following element has the maximum electron affinity? Fluorine Oxygen Nitrogen Chlorine The correct option is iv. Chlorine
Largest part of human brain is
The largest part of the brain is the cerebrum.
Cell sap is a
Cell sap is a ___________ living content of the cytoplasm living content of the cell non-living content of the vacuole... View Article
Which of these cells are called as soldiers of the body
Which of the following cells are called the soldiers of the body? RCBs WBCs platelets all of these The correct... View Article
How many colours comprises white light
The white light comprises seven colours.
The word which means the opposite of modern is
The word which means the opposite of modern is ancient.
