NEET (UG) entrance exam Question Bank Solutions

The following solutions were prepared by dissolving 10 g of glucose (C₆H₁₂O₆) in 250 ml of water (P₁), 10 g of urea (CH₄N₂O) in 250 ml of water (P₂) and 10 g of sucrose (C₁₂H₂₂O₁₁) in 250 ml of water (P₃). The right option for the decreasing order of osmotic pressure of these solutions is

Match List - I with List - II.

List - I		List - II
(a)	\[\ce{->[CO,HCl][Anhyd. AlCl3/CuCl]}\]	(i)	Hell-Volhard-Zelinsky reaction
(b)	\[\begin{array}{cc} \ce{O}\phantom{.................}\\ ||\phantom{.................}\\ \ce{R - C - CH3 + NaOX ->} \end{array}\]	(ii)	Gattermann-Koch reaction
(c)	\[\ce{R - CH2 - OH + R'COOH ->[Conc. H2SO4]}\]	(iii)	Haloform reaction
(d)	\[\ce{R - CH2COOH ->[(i) X2/Red P][(ii) H2O]}\]	(iv)	Esterification

Choose the correct answer from the options given below.

Which of the following vitamins is water soluble?

One part of an element A combines with two parts of an element B. Six parts of the element C combines with four parts of element B. If A and C combine together the ratio of their weights will be governed by ______.

Choose the INCORRECT statement.

In a period, element with least atomic size is ______.

Which of the following acids is a vitamin?

The value of ΔH for the reaction, \[\ce{X2_{(g)} + 4Y2_{(g)} ⇌ 2XY4_{(g)}}\] is less than zero. Formation of \[\ce{XY4_{(g)}}\] will be favoured at ______.

Which one of the following statements about the zeolites is CORRECT?  

The reaction of chloroform with Ag powder gives ______. 

At CMC (Critical micelle concentration) the surface molecules ______.

Uncertainty principle was given by ______.

The number of dative bonds in sulphric acid molecule is ______.

Siderite is a mineral of ______

What is the catalyst used for the oxidation of SO₂ to SO₃ in the lead chamber process for the manufacture of sulphuric acid?

Indicate the wrong statement according to Valence bond theory:

The ratio of root mean square speed, average speed and most probable speed is ______.

The reaction given below \[\ce{BaCl2(g) + 2H2O(ℓ) -> BaCl2 . 2H2O(s);}\] ΔH = – x KJ. The value of ΔH represents:

Action of zinc on tetrabromoethane gives:

Benzenediazonium chloride reacts with phenol to give p-hydroxy azobenzene, an orange dye. This reaction is known as ______.