Blog Log in Get Started Free

NEET Practice Questions (MCQs) with Answers & Solutions

Practice free NEET NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

All Physics Chemistry Botany Zoology

● ● ● ● ●

The complex showing a spin-only magnetic moment of 2.82 B.M. is:

Ni(CO)₄

[NiCl₄]^2-

Ni(PPh₃)₄

[Ni(CN)₄]^2-

You've reached today's free limit of 20 questions. Log in to keep practising for free.

● ● ● ● ●

Atomic number of Cr and Fe are respectively 24 and 26 which of the following is paramagnetic with the spin of electron?

[Cr(CO)₆]

[Fe(CO)₅]

[Fe(CN)₆]^4-

[Cr(NH₃)₆]³⁺

You've reached today's free limit of 20 questions. Log in to keep practising for free.

● ● ● ● ●

The compound which does not show paramagnetism is:

[Cu(NH₃)₄]Cl₂

[Ag(NH₃)₂]Cl

N₂O₄

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

(d) N₂O₄,a diamagnetic

● ● ● ● ●

A solution containing 2.675g of CoCl₃.6NH₃(molar mass=267.5g mol^-1) is passed through a cation exchanger. The chloride ions obtained in solution were treated with excess of AgNo₃ to give 4.78g of AgCl(molar mass=143.5g mol^-1). The formula of the complex is:(At.mass of Ag=108u)

[CoCl(NH₃)₅]Cl₂

[CO(NH₃)₆]Cl₃

[CoCl₂(NH₃)₄]Cl

[CoCl₃(NH₃)₃]

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

(b) Meq.of Cl^- outside the sphere

= $\frac{4.78}{143.5} x 1000 = 33.3 m$ mole of Cl^-

=0.033 mole of Cl^-

.. Wcl=1.185g

$\frac{2.675}{267.5}$ or 0.01 mole of complex gives 0.01xn mole of Cl^-

.. 0.01xn=0.033 .. n=3

Thus, formula is [CO(NH₃)₆]Cl₃

● ● ● ● ●

Trunbull's blue is :

ferricyanide

ferrous ferricyanide

ferrous cyanide

ferri ferrocyanide

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

(b) Turnbull's blue is KFe^II[Fe^III(CN)₆]

● ● ● ● ●

The correct IUPAC name of AlCl₃(EtOH)₄ is :

aluminium (II)Chloride-4-ethanol

aluminium (III)Chloride-4-ethanol

aluminium (IV)Chloride-4-hydroxy ethane

aluminium Chloride-4-ethanol

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

(b)

Follow IUPAC rules

write cationic part first, thn go for anionic part

● ● ● ● ●

Which complex has square planar shape dsp² hydridizatiop?

[Ni(CN)₄]^2-

[Cu(NH₃)₄²⁺

[PtCl₄]^2-

All of these

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

(d) All involve dsp²-hybridization

● ● ● ● ●

Which has regular tetrahedral geometry?

[Ni(CN)₄]²⁺

SF₄

[BF₄]^-

XeF₄

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

● ● ● ● ●

The primary valency of Fe in K₃[Fe(Cn)₆] is:

zero

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

(a) According to Werner's theory, the primary valency of a metal is equal to the no. of charge on complex ion,i.e, 3 on [Fe(Cn)₆]^3-

● ● ● ● ●

The IUPAC name for the complex [Co(NO₂)(NH₃)₅]Cl₂ is:

nitro-N-pentaamminecobalt(III)chloride

nitro-N-pentaamminecobalt(II)chloride

pentaamminenitro-N-cobalt(II)chloride

pentaamminenitro-N-cobalt(III)chloride

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

(d)

n nitro , becoz N is donating electron to metal

Ready to ace NEET?

Free access · No credit card required

Browse All Questions Create Free Account

Frequently Asked Questions

Yes. You can attempt every NEET question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.

No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.

The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.