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Following reaction is an example of which type of reaction: NaCl + AgNO₃ gives AgCl + NaNO₃

Answer: Given reaction is NaCl + AgNO3→ AgCl + NaNO3 Since there is an exchange of ions between the reactants, it is a double displacement... View Article

Which is not a function of the male reproductive system in humans? a)The secretion and production of male sex hormones b)The function of nourishing the growing embryo is carried out by the female reproductive system. c)To produce, transport, maintain, and to nourish sperm d)Discharging of the sperm within the female reproductive tract

The function of nourishing the growing embryo is carried out by the female reproductive system.... View Article

How does the ionisation enthalpy vary across the periodic table?

Ionization enthalpy decreases down the group on moving from top to bottom in a periodic table.... View Article

Presence of undesirable solid or gaseous particles in the air promotes:

The presence of undesirable solid or gaseous particles in the air promotes tropospheric pollution. The presence of undesirable solids or... View Article

Which of the following functions is carried out by phloem?a. Phloem is responsible for the transport of food from the leaves to all the parts of the plant. b. It transports water and other soluble nutrients to the rest of the plant c. Tracheids help phloem transport food d. Phloem allows the plant to grow taller and roots to grow longer.

Phloem is responsible for the transport of food from the leaves to all the parts of the plant.... View Article

Action of heat on potassium permanganate at 746K results in formation of:

Action of heat on potassium permanganate at 746K results in formation of potassium manganate.... View Article

Non-competitive inhibitor changes the active site of enzyme after binding at:

Non-competitive inhibitor changes the active site of enzyme after binding at allosteric site.... View Article

Increase in which of the following gases cause global warming? (a) Carbon dioxide (b) Oxygen (c) Nitrogen (d) Argon

Carbon dioxide is one of the main greenhouse gases that is responsible for heating of earth.... View Article

Name the instrument which can accurately measure the thickness of a paper.

Screw gauge is used to measure the thickness of a paper as it has the smallest least count.... View Article

Out of transpiration, guttation and bleeding, which is/are not natural processes?

Bleeding is not a natural process. This process occurs only in case a plant gets 'injured.'... View Article

Quantum mechanics is based on a fundamental equation which is called

Quantum mechanics is based on a fundamental equation which is called Schrodinger equation.... View Article

Name the compound with all bond angles that are exactly 109 degree 28.

Carbon tetrachloride has regular tetrahedral geometry with bond angles equal to 109o 28€™.... View Article

What happens when the temperature of a solution of an weak electrolyte increases?

It results in an increase in degree of dissociation causing increase in van't Hoff factor.... View Article

In humans, what does the normal systolic and diastolic blood pressure mean?

The normal systolic pressure is about 120 mm of Hg and diastolic pressure is 80 mm of Hg.... View Article

Name the gas evolved when HCl acid is added to zinc metal.

Hydrogen gas gets evolved when HCl acid is added to zinc metal. Zn + 2HCl †’ ZnCl2 + H2... View Article

Metal having low melting point such as tin can be purified by

The low melting metals can be separated from high melting metals by liquation process.... View Article

Give an example of a chemical reaction in which tremendous amount of heat is released.

Sodium reacts explosively with water resulting in evolution of a large amount of heat.... View Article

In many unicellular organisms waste products are removed by the process of:

In many unicellular organisms waste products are removed by the process of diffusion.... View Article

Name the attacking reagent in Friedel crafts alkylation and acylation.

In Friedel crafts alkylation and acylation the attacking reagent is an Electrophile.... View Article

Mendel conducted his experiments on which plant to study the mechanism of inheritance.

Mendel conducted his experiments on pea plant to study the mechanism of inheritance.... View Article

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