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Can copper sulphate solution be stored in iron container? (A) No, because Cu is more reactive than iron (B) No, because iron is more reactive than copper, therefore reaction takes place (C) Yes, because copper is less reactive than iron (D) Yes, because copper is more reactive than copper

No, because iron is more reactive than copper, therefore reaction takes place In CuSO4 copper metal is less reactive than iron (Fe). Hence, when... View Article

Which strait separates North America from Asia (A) Strait of Gibraltar (B) Bering Strait (C) Sunda Strait (D) Strait of Otranto

Bering Strait is the strait that separates North America from Asia. It separates the two continents at their closest point and also it is the... View Article

Each model of a computer has a unique (A) Assembly language (B) Machine language (C) High level language (D) All of the above (E) None of the above

Each model of a computer has a unique machine language. The computer understands machine language or the binary language of O and 1. Hence, the... View Article

In lac operon system, lac i gene codes for (A) Inducer (B) Repressor (C) Promoter (D) β-galactosidase

In lac operon system, lac i gene codes for repressor. Hence the correct option is (B) Learn more: Lac Operon... View Article

The part of plant used for culturing is called (A) Scion (B) Explant (C) Stock (D) Callus

Explants The part(s) of the plant used for culturing is known as explants. The explants are cultured in-vitro on a nutrient medium that caters... View Article

Among the following compounds the strongest acid is: (A) HC ≡ CH (B) C6H6 (C) C2H6 (D) CH3OH

The carbon atom is attached to another carbon atom in acetylene, benzene and ethane. In methanol, the carbon atom is attached to the oxygen atom.... View Article

How was the great peninsular plateau formed?

The Peninsular plateau is a tableland composed of the old crystalline, igneous and metamorphic rocks. It has its formation associated with the... View Article

The calorific value of fat is: (A) less than that of carbohydrate and protein (B) less than protein but more than carbohydrate (C) less than carbohydrate but more than protein (D) more than that of carbohydrate and protein

More than that of carbohydrate and protein Fats have more calorific value when compared to carbohydrates, protein, alcohols, roughage and other... View Article

Karyology is the study of (A) Cytoplasm (B) Cell (C) Mitochondria (D) Nucleus

Karyology is the study of nucleus. Therefore, the correct option is (D)... View Article

An ideal gas will have maximum density when ___________. (A) P = 1 atm, T = 300 K (B) P = 2 atm, T = 150 K (C) P = 0.5 atm, T = 600 K (D) P = 1 atm, T = 500 K

From Ideal gas equation, PV = nRT On rearranging the above equation, P = wRT/MV w/V = PM/RT ρ = PM/RT From the above equation, we can... View Article

Name some aquatic habitats

The habitat that has water in its surroundings in which the organisms live is known as aquatic habitat. There are three kinds of aquatic habitat.... View Article

The state having the largest area under permanent forests is? (A) Madhya Pradesh (B) Bihar (C) Odisha (D) None of these

Madhya Pradesh has the largest area under permanent forests. Therefore, the correct option is (A)... View Article

If 10^2y = 25 then 10^-y equals to (A) -1/5 (B) 1/50 (C) 1/625 (D) 1/5

Given 102y = 25 This can be written as, (10y)2 = 52 Hence, 10y = 5 10-y = 5-1 We get, 10-y = 1/5 Hence, the correct option is (D)... View Article

Give the difference between aqueous humor and vitreous humor

Aqueous humor 1. It is the watery fluid 2. Present in the full length of the cornea and the iris in the anterior and the posterior chamber 3.... View Article

Phosphorylation of glucose during glycolysis is catalysed by (A) Phosphoglucomutase (B) Phosphoglucoisomerase (C) Hexokinase (D) Phosphorylase

Hexokinase During glycolysis, the first step involves the phosphorylation of glucose or fructose which results in the formation of... View Article

Express the following as the sum of two odd primes: 24

We know that, The sum of 5 and 19 is 24 We can consider this as an answer since 5 and 19 both are odd prime numbers Hence, 19 + 5 = 24 So,... View Article

State the law of radioactive decay. Hence derive the expression N= N0e^-λt where symbols have their usual meaning

The radioactive decay law states that -The probability per unit time that a nucleus will decay is a constant, independent of time. It is... View Article

What is displacement?

Displacement is defined as the change in position of an object. It is a vector quantity and has a direction and magnitude. For example- If an... View Article

Water is flowing continuously from a tap having an internal diameter 8 x 10^-3 m. The water velocity as it leaves the tap is 0.4 ms^-1. The diameter of the water stream at a distance 2 x 10^-1 m below the tap is close to (a) 5.0 x 10^-3 m (b) 7.5 x 10^-3 m (c) 9.6 x 10^-3 m (d) 3.6 x 10^-3 m

Given d1 = 8 x 10-3 m v1 = 0.4 ms-1 h = 0.2 m According to equation of motion, We get, = 2 ms-1 According to equation of continuity... View Article

The nobel prize was instituted by which country? (A) USA (B) UK (C) Russia (D) Sweden

Sweden The Nobel Prize award was first conferred in 1901. It is given in the name of Alfred Nobel who was a Swedish inventor. The first... View Article

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