The correct answer is option (A) hydrophilic head and a hydrophobic tail The soap molecule has a hydrophilic head and a hydrophobic tail.... View Article
(A) Ionic bond (B) Vander Waals bond (c) Covalent bond (d) None of these The correct answer is option (B) Vander Waals bond Vander Waals... View Article
Dissolving sugar in water is an example of physical change. It is a physical change as the sugar dissolves in water and no new substances are formed.... View Article
Answer: Extra very pure N2 can be obtained by heating Ba(N3)2. The thermal decomposition of sodium or barium azide yields very pure nitrogen.... View Article
The reaction of calcium with water is less violent and the hydrogen starts floating on water. Hence, the bubbles of hydrogen gas will stick to... View Article
In an electrolytic cell, the cathode is considered to be negative and the anode is positive because the battery pumps electrons aways from the... View Article
Petroleum is a fossil fuel, which is obtained from the remains of dead plants and animals. Petroleum is a mixture of various useful substances.... View Article
A substance, which is made up of only one kind of particles and is free from any kind of mixture with constant structure is termed a pure... View Article
Magnetic Moment is defined as the magnetic strength and orientation of a magnet or other object that produces a magnetic field. The magnetic... View Article
NO-3 and NH+4 ? TheHybridization Of Atomic Orbitals Of Nitrogen In NO+2 The total electrons in the valence shell are 16. 16 / 8= 2. Quotient = 2... View Article
NO3- CO -23 ClO-3 SO3 Isoelectronic refers to two or more compounds having the same numbers of electrons. Isostructural refers to the chemical... View Article
