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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

Which of the following is capable of producing a new plant? i) Seed ii) Leave iii) Bark iv) Peel of the fruit

(i) Seed can germinate and develop into a new plant. Seed germination may be defined as the significant process by which different plant... View Article

Which of the following rivers does not originate in the Himalayas? (a) Ganga (b) Indus (c) Brahmaputra (d) Narmada

Answer: (d) Narmada Narmada is a peninsular river. Rest all the given rivers are Himalayan rivers. Narmada river is located in Central India.... View Article

Which of the following crops require excess water for its growth? i) Tomato ii) Surgacane iii) Maize iv) Wheat

(ii) Sugarcane The crop of sugarcane grows well when water is present in excess. Sugarcane water requirement Sugarcane is a vital crop as it... View Article

Which one of the following molecule exists as tetra-atomic molecule? a. Sulphur b.Helium c.Oxygen d.Phosphorus

Phosphorus is a tetra-atomic molecule. Phosphorous exists as molecules made up of four atoms in a tetrahedral structure. The tetrahedral... View Article

Choose the correction option for the largest phylum of animal: i) Chordate ii) Annelid iii) Sponge iv) Arthropod

The correct option for the largest phylum of animal is iv) Arthropod Phylum Arthropoda is the largest phylum of all living organisms and... View Article

Which of the following animal does not have a segmented body? i) Enoplea ii) Leech iii) Arthropod iv) Chordate

(i) Enoplea Enoplea belongs to the phylum Nematoda, which are bilaterally symmetrical, triploblastic, cylindrical and unsegmented. The... View Article

Which of the following proteins helps in the coagulation of blood? a. Fibrinogen b.Dystrphin c.Elastin d.Coronin

(a) Fibrinogen Fibrinogen is a plasma glycoprotein synthesised by the liver. It plays an important role in the clotting of blood. Blood... View Article

Choose the right option for the finest quality of iron ore: i) Hematite ii) Magnetite iii) Limonite iv) Siderite

The correct option for the finest quality of iron is (ii) Magnetite Haematite, Magnetite, Siderite, Iron pyrites are the ores of the metal... View Article

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