List of practice Questions

For $a > 0 , t \in\left(0, \frac{\pi}{2}\right) ,$ let $ x = \sqrt{a^{\sin^{-1}t}} $ and $y = \sqrt{a^{\cos^{-1}t}},$ Then $ 1+ \left(\frac{dy}{dx}\right)^{2} $ equals :

For a cyclic process, which of the following is not true?

Following table summarises the differences between light reactions and dark reactions. Which of the above pairs of differences is/are incorrect ?

Following table summarises the differences between natality and mortality. Select the incorrect ones.

Following table summarises the differences between normal cells and cancerous cells. Pick up the wrong difference(s) and select the correct option.

Following reactions are taking place in a Galvanic cell, $Zn \to Zn^{2+}+2e^{-}; Ag^{+}+e^{-} \to Ag$ Which of the given representations is the correct method of depicting the cell?

Following law/laws is/are basic law/laws

Following are the marks obtained by $9$ students in a mathematics te st: $50, 69, 20, 33, 53, 39, 40, 65, 59$ Mean deviation from the median is

Following are the marks obtained, out of $100$, by two students Ravi and Hashina in $10$ tests. Who is more intelligent and who is more consistent?

Following is the digrammatic representation of the operation of natural selection on different traits. Which of the following options correctly identifies all the three graphs $A, B$ and $C$ ?

Following is the store house of calcium in muscles

Fluorine reacts with water to give

Following are the differences between apoplast pathway and symplast pathway. Which of the given differences is/are incorrect ?

Following are the differences between innate immunity and acquired immunity. Select the option with correct pair of differences,

Flowering plants have developed certain outbreeding devices to discourage self-pollination and encourage cross-pollination. One of these is not an example of such outbreeding device.

Fluorine is a stronger oxidising agent than chlorine in aqueous solution. This is attributed to many factors except

Fluorine is more reactive than chlorine because

Fluorine is the best oxidising agent because it has

'Flavr Savr' variety of tomato which remains fresh for a longer period than normal tomato variety

Fleshy buds produced in the axil of leaves, which grow to form new plants when shed and fall on ground, are called

Flocculation value is expressed in terms of

Five-membered ring structures of fructose are given below. Mark the incorrect statement.

Flame cells are excretory organs of

Five horses are in a race. Mr. A selects two of the horses at random and bets on them. The probability that Mr. A selected the winning horse is

Five balls of different colours are to be placed in three boxes of different sizes. Each box can hold all five balls. In how many ways can we place the balls so that no box remains empty?