Identify the structure which has a unique property of replication.
DNA has a unique property of replication. Replication is a process by which a single DNA molecule produces two identical... View Article
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Determine the Van’t Hoff factor for Ca(NO3)2 on 100% dissociation.
Calcium nitrate on dissociation gives 2 moles of nitrate ions and one mole of calcium ions, so the total number... View Article
An element having configuration 1s2 2s2 2p6 3s2 3p6 4s1 will form:
This element belongs to group 1 i.e. alkali metals group and metallic oxides are basic. What are Oxides? Oxides are... View Article
What is the term used for blood lacking corpuscles and fibrinogen?
Blood lacking corpuscles and fibrinogen are called serum. Serum The serum is the fluid part of the blood and does... View Article
Find the first three common multiples of: (a) 6 and 8 (b) 12 and 18
(a) 6 and 8 Multiple of 6 = 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 72,… Multiple of... View Article
Why do we prefer a convex mirror as a rear-view mirror in vehicles?
We prefer a convex mirror as a rear-view mirror in vehicles because it gives a wider field of view, which... View Article
Name the chromosome that is present in both male as well as female.
The X chromosome is present in males as well as in females. Therefore, the X-linked traits can be present in... View Article
Name the factor on which loudness and softness of sound depends on.
The loudness and softness of sound depend on the amplitude of the wave. More the amplitude more is the loudness.... View Article
In what state does BeCl2 in vapour phase exists below 900 degree C?
BeCl2 in vapour phase exists as a mixture of monomer BeCl2 and dimer Be2Cl4. Monomer Monomer is defined as a... View Article
What is the term used for partially deactivated palladised charcoal?
Partially deactivated palladised charcoal is known as Lindlar’s catalyst. Lindlar’s Catalyst The catalyst is used for the hydrogenation of alkynes... View Article
What is the physical state of water at (a) 25°C (b) 0°C (c) 100°C ?
Answer: What is Matter? The matter is anything that has mass and occupies space. The three basic states of matter... View Article
Which of the following numbers are prime: (a) 23 (b) 51 (c) 37 (d) 26
Answer: (a) 23 A prime number is a positive integer having exactly two factors. If p is a prime, then... View Article
Do you know of any activity which may be polluting the water source?
Water is one of the important resources which helps for sustaining life. If the water bodies are polluted, then all... View Article
What is the end product of Rosenmund’s reduction of an acyl chloride?
Aldehydes are formed. Rosenmund’s reduction Rosenmund’s reduction reaction is used for the preparation of Aldehydes from acyl chloride or acid... View Article
What is the nature of silicones surrounded by non-polar alkyl groups?
Silicones being surrounded by non-polar alkyl groups are water-repelling in nature. Silicones Silicones are high-performance materials that include reactive silanes,... View Article
Name the functional group for which Cannizzaro reaction is not given.
Cannizzaro’s reaction is given by aldehydes that do not have α− hydrogen, so it will not undergo the Cannizzaro reaction. Cannizzaro reaction Cannizzaro’s... View Article
What is the common thing in the elements belonging to the same group?
Elements in the same group have the same number of valence electrons. Elements in the same group are those that... View Article
Explain how defects in a metal block can be detected using ultrasound.
Defects in metal blocks do not allow ultrasound to pass through them, and they are reflected. This fact is used... View Article
What happens to the entropy when the evaporation of water takes place?
Entropy is the measure of randomness. If the system is disordered, the randomness increases and consequently, entropy increases and vice... View Article
Why does a compass needle get deflected when brought near a bar magnet?
Answer: Magnetic field The magnetic field is a field generated by the electric charge or magnet in the motion. The... View Article
