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Which of the following does not have nucleus in its cell? i) Fungi ii) Bacteria iii) Algae iv) Protists

(ii) Bacteria The basic structure or design of the cell can be treated as one of the basic distinction among living organisms. The cell may or... View Article

A certain household has consumed 250 units of energy during a month. How much energy is this in joules?

Answer: 1 unit of energy is equal to a 1-kilowatt hour (kWh). Energy (E) = 250 units 1 unit = 1 kWh 1 kWh = 3.6 x 106 J Therefore,... View Article

Which of the following substance is not present in the cell? a. Soil b.Carbohydrates c.Fats d. Protiens

(a) Soil Cells are made of a variety of chemical substances - proteins, carbohydrates, fats or lipids, and so on. Soil is not a component of the... View Article

Which of the following is an example of a dead object? i) Mango plant ii) Stone iii) Earthworm iv) Bird

The correct option is ii) Stone. All the other given options are examples of living things. Living thing Living is something that is alive,... View Article

Which of the following is not a part of nucleus? a. Nuclear Membrane b.Nucleolus c.Endosomes d.Lysosome

(d)Lysosome The lysosome is a separate cell organelle lying in the cytoplasm. The nucleus is a double-membraned organelle observed in all... View Article

Which of the following is not transported through a pipeline? a)Oil b)Natural Gas c)Biofuels d)Iron ore

(d)Iron ore Oil and refined products are transported twice during the crude oil supply chain: first upstream from wells to refineries, and then... View Article

If the organisation of a cell is destroyed due to some physical or chemical influence, what will happen?

If the organisation of a cell is destroyed due to some physical or chemical influence, then the cell will not be able to perform the basic... View Article

A vessel has 4 liters and 500 ml of curd. In how many glasses each of 25 ml capacity, can it be filled?

Given that Capacity of curd in a vessel = 4 liters 500 ml = 4 × 1000 ml + 500 ml = 4500 ml Capacity of one glass = 25ml Find out In how many... View Article

What is the momentum of an object of mass m, moving with a velocity v? (a) (mv)² (b) mv² (c) ½ mv² (d) mv

The correct option is (d) mv Momentum = Mass x Velocity Momentum is the quantity of motion and is compounded by the quantity of the matter... View Article

Name the unsaturated hydrocarbon for which Anti-Markovnikov’s rule for addition of HBr is not applicable.

The unsaturated hydrocarbon for which Anti-Markovnikov's rule for the addition of HBr is not applicable is an asymmetrical alkene.... View Article

How is the movement of leaves of the sensitive plant different from the movement of a shoot towards light?

The movements of the leaves of the sensitive plant are touch-sensitive and independent of growth known as thigmonasty. While the movement of the... View Article

Which one of the following element exists as monoatomic molecule? a. Oxygen b.Phosphorus c.Sulphur d.Argon

(d) Argon Oxygen is diatomic, Phosphorus is tetra-atomic, Sulphur is poly-atomic and Argon is monoatomic. Monoatomic molecules: The... View Article

Which among the following do not return to nutrients: i) Calcium ii) Nitrogen iii) Phosphorus iv) Magnesium

The correct option is ii) Nitrogen. Nitrogen goes back to the soil. The major source of free nitrogen is the action of soil micro-organisms and... View Article

Which of the following forms a colloidal solution in water? (1) Starch (2) Glucose (3) Urea (4) BaSO₄

Answer: (1) Starch A colloid is a mixture in which one substance of dispersed insoluble particles is suspended throughout another substance.... View Article

Which one of the following is not artificial sweetening agent? a.saccharin b.aspartame c.sucralose d.sucrose

(d) Sucrose Sucrose is a natural sweetener and rest all are artificial sweeteners. Sweeteners add a sweet taste to the food and other... View Article

Which of the following is not a feature of flatworms?a)endoderm b)mesoderm and c) ectoderm d)pseudocoelomate

(d)Pseudocoelomate Phylum Platyhelminthes belongs to the kingdom Animalia. The organisms are also known as flatworms. Characteristics of... View Article

On the basis of Rutherford’s model of an atom, which subatomic particle is present in the nucleus of an atom?

Answer: As per Rutherford’s model of an atom, the positively charged protons are the ones that are present in the atom. As per the... View Article

What is the term used for explaining the process of splitting of spectral line in presence of electric field?

Stark effect is the term used for explaining the process of splitting spectral line in presence of the electric field. The splitting of a... View Article

Which of the following basic solution will have the highest pH? i) Lemon juice ii) HCl iii) Vinegar iv) NaOH

(iv) NaOH NaOH being the strongest base will have the highest pH value. Strong bases dissociate completely in an aqueous solution. Sodium... View Article

Identify from the following which is not an oxidising agent. a)Oxygen b)Aluminium c)Chlorine d)Sulphuric Acid

(b) Aluminium Aluminium is a reducing agent but not an oxidising agent. Aluminium (Al) acts as a reducing agent because of its low standard... View Article

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