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Bipolar neurons occur in A. Vertebrate embryos B. Retina of eyes C. Brain and spinal cord D. Skeletal muscles

Answer: B. Retina of eyes Bipolar neurons are found in the retina of the eye, inner ear and roof of the nasal cavity.... View Article

3, 10, 20, 33, 49, 68, ___

3, 10, 20, 33, 49, 68, 90 3 + 7 = 10 10 + 10 (+3) = 20 20 + 13(+3) = 33 33 + 16(+3) = 49 49 + 19(+3) = 68 68 + 22(+3) = 90... View Article

Which reaction is not feasible? A. 2KI+Br2⟶2KBr+I2 B. 2KBr+I2⟶2KI+Br2 C. 2KBr+Cl2⟶2KCl+Br2 D. 2H2O+2F2⟶4HF+O2

Answer: B. 2KBr+I2⟶2KI+Br2 2KBr+I2⟶2KI+Br2 is not feasible.... View Article

Proteins are the polymers of __________. A. Formaldehydes B. Secondary amines C. Amino acids D. Ammonia

Answer: C. Amino acids Proteins are the polymers of amino acids.... View Article

Who was the founder of the Gurjara Pratihara dynasty? A. Harichandra B. Raja Bhoj C. Prithviraj Chauhan D. Pulakeshin

Answer: A. Harichandra Harichandra was the founder of the Gurjara Pratihara dynasty.... View Article

The value of: (3 + cot 76°.cot16°)/(cot 76° + cot 16°) is:

The value of (3 + cot 76°.cot16°)/(cot 76° + cot 16°) is tan 46°. Explanation: = tan 46°... View Article

Who was chunilal what did he want from bepin babu?

Chunilal was Bepin Babu’s school mate. He had been having a rough time lately and had been coming to see Bepin Babu for a job. Bepin Babu knew... View Article

(i) What is meant by the term ‘coordination number’? (ii) What is the coordination number of atoms: (a) in a cubic close-packed structure? (b) in a body-centred cubic structure?

(i) Coordination number of an atom/ion/molecule is the number of nearest atom/ion/molecule of immediate neighbour of given atom. In ionic... View Article

Amniocentesis is a process to: A. determine any disease of heart B. determine any hereditary disease of the embryo C. know about the disease of brain D. grow cell on culture medium

Answer: B. determine any hereditary disease of the embryo Amniocentesis is a process to determine any hereditary disease of the embryo.... View Article

A solid cube of side 12 cm is cut into eight cubes of equal volume. What will be the side of the new cube? Also, find the ratio between their surface areas.

Side of the solid cube = 12cm Volume of cube = 12×12×12 = 1728 cu.cm Solid cube is cut into 8 small cubes of equal volumes. Volume... View Article

Hybridisation involves: A. Separation of atomic orbitals B. Overlapping of atomic orbitals C. Mixing of atomic orbitals of atom D. All of these

Answer: C. Mixing of atomic orbitals of atom Hybridisation involves mixing of atomic orbitals of atom.... View Article

The process of reduction involves: A. Removal of hydrogen B. Gain of electrons C. Addition of oxygen D. Loss of electron

Answer: B. Gain of electron The process of reduction involves gain of electrons.... View Article

Connecting link between annelida and mollusca is: (a) peripatus (b) neopilina (c) proterospongia (d) archaeopteryx

Answer: (b) neopilina Connecting link between annelida and mollusca is neopilina.... View Article

Find the area of the triangle having three sides given as 5 cm, 6 cm and 7 cm.

Given, the sides of triangle are 5cm, 6cm and 7cm. By Heron's formula we can find the area of triangle. Area of triangle =... View Article

In a natural ecosystem, decomposers include A) Microscopic animals B) Bacteria and fungi C) The above two types of organisms plus microscopic animals D) None of the above

Answer: B) Bacteria and fungi In a natural ecosystem, decomposers include only bacteria and fungi.... View Article

Silicon doped with electronrich impurity forms ____. A. p-type semiconductor B. n-type semiconductor C. intrinsic semiconductor D. insulator

Answer: B. n-type semiconductor Silicon doped with electronrich impurity forms n-type semiconductor.... View Article

In electrovalency: (A) molecules lose electrons, forming atoms (B) molecules gain electrons, forming atoms (C) atoms share electrons (D) atoms lose or gain electrons, forming ions

Answer: (D) atoms lose or gain electrons, forming ions... View Article

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