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Which Of The Following Molecule Is Planar? (A) CH4(B) C2H4(C) PCl3(D) SiCl4.

The correct answer is (B) C2H4. Ethylene - C2H4 is a planar molecule. Ethylene show Sp2 hybridization and the four hydrogen atoms are placed in... View Article

The Least Number Of Noncollinear Points Required To Determine A Plane Is______.(A) One.(B) Two.(C) Three. (D) Four.

The correct answer is (C) Three. Explore more such questions and answers at BYJU’S.... View Article

The Most Important Function Of Transpiration In Plants Is To Cause______.

Cooling of the plant Transpiration is the process of loss of water from plants in the form of water vapour from the aerial parts of the plants.... View Article

The Get Cross-pollinated By A Species Of Bees, The Mediterranean Orchid Ophrys Employs(A) Diapause(B) Camouflage(C) Sexual Deceit (D) Pseudocopulation.

The correct answer is (C) Sexual Deceit The Mediterranean orchid Ophrys employs sexual deceit to ensure cross-pollination. Sexual deceit is a... View Article

Chipko Movement Is Connected With______.

Environmental conservation Chipko movement is associated with Environmental conservation. This is the strongest movement, which began in 1973,... View Article

Select One Word For The Given Definition. One Who Leads Others In Any Field.(A) Officer(B) Boss(C) Pioneer(D) Chairman.

The correct answer is (C) Pioneer Pioneer refers to the first leader in any field or one who leads in every field. Boss refers to a person who... View Article

The Stem Of Turmeric Is______. (A) Tuber (B) Bulb (C) Corm (D) Rhizome.

The correct answer is (D) Rhizome The Stem Of Turmeric Is Rhizome. Rhizome refers to a mass of roots, which is also called creeping root... View Article

Assertion: Light Year And Wavelength Have Same Dimensional Formula.Reason: Both Have The Dimensions Of Time.(A) Both Assertion And Reason Are Incorrect.(B) Assertion Is Correct And Reason Is Incorrect.(C) Both Assertion And Reason Are Correct And Reason Is The Correct Explanation For Assertion. (D) Both Assertion And Reason Are Correct But Reason Is Not The Correct Explanation For Assertion

The correct answer is (B) Assertion Is Correct And Reason Is Incorrect. Light year and wavelength both represents the distance. Hence, both have... View Article

Assertion: Charge on the complex of a ferric ion with EDTA is minus one. Reason: EDTA is a hexadentate ligand(A) Both Assertion and Reason are True(B) Assertion is True and Reason is False(C) Assertion is False and Reason is False(D) Assertion is True and Reason is NOT a correct explanation for Assertion.

The correct answer is (D) Assertion is True and Reason is NOT a correct explanation for Assertion. Charge on the complex of the ferric ion with... View Article

Factorise the expression 3x² + 14x + 8.

The given expression is... View Article

ba – cb – b – bab –

The series is b a b c / b a b c / b a b c.... View Article

An objective type test paper has 5 questions. Out of these 5 questions, 3 questions have four options each (A, B, C, D) with one option being the correct answer. The other 2 questions have two options each, namely True and False. A candidate randomly ticks the options. Then the probability that he/she will tick the correct option in at least four questions, is

Firstly, probability of getting exactly 4 correct answers =3 correct MCQ and a T/F+2 correct MCQ and 2 T/F.... View Article

The 2006^th digit in the sequence 12345678910111213 is

The number of 1 digit numbers = 9 Number of 2 digit numbers = 90 Number of 3 digit numbers starting from 100 till 699 = 600 (to find the number... View Article

The greatest common factor of given numbers is called

The greatest common factor of given numbers is called HCF.... View Article

Ritu is now four times as old as his brother Raju. In 4 years time, her age will be twice Raju’s age. What are their present ages?

Let the age of Raju be x years. The age of Ritu will be = 4 × x years In 4 years time, Age of Raju = (x + 4) years ... View Article

Find the value of the cube root of the number 45. (Round off your number to the nearest whole number)

Take, n = 45, choose any starting value of x.... View Article

A positive integer is of the form 3q + 1, q being a natural number. Can you write its square in any form other than 3m + 1, i.e., 3m or 3m + 2 for some integer m? Justify your answer.

No. Consider the positive integer 3q + 1, where q is a natural number. => (3q + 1)2 = 9q2 + 6q + 1 = 3 (3q2 + 2q) + 1 ... View Article

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