NEET Practice Test - 17 - NEET MCQ

Which of the following is/are the hazardous pollutant(s) present in automobile exhaust gases?

(i) N₂

(ii) CO

(iii) CH₄

(iv) Oxides of nitrogen

An alkene having molecular formula C7H14 was subjected to ozonolysis in the presence of zinc dust. An equimolar amount of the following two compounds was obtained

The IUPAC name of the alkene is

According to the adsorption theory of catalysis, the speed of the reaction increases because

Most reactive halide towards S_N1 reaction is

The rate constant k, for the reaction

is 1.3 × 10^–2s^–1. Which equation given below describes the change of [N₂O₅] with time ? [N₂O₅]₀ and [N₂O₅]_t correspond to concentration of N₂O₅ initially and at time t.

Lead is not affected by dil. HCl in cold because

X is identified as

An organic compound X on treatment with pyridinium chlorochromate in dichloromethane gives compound AND. Compound Y reacts with I2 and alkali to form triiodomethane. The compound 'X' is

(a)C₂H₅OH

Which is the major product formed when acetone is heated with iodine and potassium hydroxide?

The oxidation states of iodine in HIO₄, H₃IO₅ and H₅IO₆ are respectively

Regarding F^– and Cl^– which of the following statements is/are correct?

(i) Cl^– can give up an electron more easily than F^–.

(ii) Cl^– is a better reducing agent than F^–.

(iii) Cl^– is smaller in size than F^–.

(iv)F^– can be oxidized more readily than Cl^–.

Which one of the following statements is not true?

Among the following molecules

(i) XeO₃

(ii) XeOF₄

(iii) XeF₆

Those having same number of lone pairs on Xe are

Which of the following is not a fat soluble vitamin?

The value of K_c is 64 at 800 K for the reaction N₂ (g) + 3H₂ (g) ⇌ 2 NH₃ (g) . The value of Kc for the following reaction is:

Match the columns

(I) n = 3, l = 2, m₁ = – 2

(II) n = 3, l = 1, m₁ = 0

(III) n = 3, l = 0, m₁ = – 1

(IV) n = 3, l = 2, m₁ = 0

(V) n = 3, l = 3, m₁ = – 2

Of these question state designation which does not describe an allowed state for an electron in an atom?

Which is the most suitable reagent among the following to distinguish compound (3) from rest of the compounds ?

1. CH₃ - C ≡ C - CH₃

2. CH₃ - CH₂ - CH₂ - CH₃

3. CH₃ - CH₂C ≡ CH

4. CH₃ - CH = CH₂

Which of the following is spontaneous?

Zn²⁺ → Zn _(s) ; E⁰ = - 0.76 V

Cu²⁺ → Cu _(s) ; E⁰ = - 0.34 V

Which of the following complex ions is expected to absorb visible light?

(At. no. Zn = 30, Sc = 21, Ti = 22, Cr = 24)

A pressure cooker reduces cooking time for food because

The absolute configuration of the following :

(b) The concentration of reactant molecules at the active centres of the catalyst becomes high due to strong adsorption

Among the following the most stable compound is :

With which one of the following elements silicon should be doped so as to give a p-type of semiconductor ?

Aminoglycosides are usually used as:

A sudden large jumps between the values of second and third ionization energies of an element, would be associated with which of the following electron configurations?

Ethanol can be prepared more easily by which reaction?

(i) CH₃CH₂Br + H₂O → CH₃CH₂OH

(ii) CH₃CH₂ Br + Ag₂O (in boiling water) → CH₃CH₂OH