NEET News

### What is the pressure of 64g O₂ enclosed in a cylinder of 20 litres at 27⁰C

What is the pressure of 64g O₂ enclosed in a cylinder of 20 litres at 27⁰C

Options

(a) 2.5 atm (b) 2 atm (c) 2.75 atm (d) 3 atm

2.5 atm

### A particle is executing the motion x=Acos (ωt-θ). The maximum velocity of the particle is

A particle is executing the motion x=Acos (ωt-θ). The maximum velocity of the particle is

Options

(a) Aω cosθ (b) Aω (c) Aω sinθ (d) None of these

Explanation:

x = […]

### Position of hydrogen in periodic table is such that it can be placed in

Position of hydrogen in periodic table is such that it can be placed in

Options

(a) both 1st and 17th group (b) only 1st group (c) only 17th group (d) neither in 1st […]

### In the following change,KMnO₄ → MnO₂, the oxidation state of Mn changes as

In the following change,KMnO₄ → MnO₂, the oxidation state of Mn changes as

Options

(a) 7 → 4 (b) 5 → 2 (c) 7 → 5 (d) 3 → 7

7 […]

### When temperature of an ideal gas is increased from 27⁰C to 227⁰C,

When temperature of an ideal gas is increased from 27⁰C to 227⁰C, its r.m.s. speed changes from 400 m/s to Vs. The Vs is

Options

(a) 516 m/s (b) 450 m/s (c) 310 […]

### The percent law of energy transfer, in a food chain, was enunciated by

The percent law of energy transfer, in a food chain, was enunciated by

Options

(a) Lindeman (b) Haeckel (c) Elton (d) Schimper

Lindeman

Explanation:

No explanation available. Be the first to […]

### Choose the correct statements

Choose the correct statements

Options

(a) [Cr(NH₃)₆]³⁺ is diamagnetic (b) Oxidation state of Ni in [Ni(CO)₄] complex is zero (c) Ligands are generally electron acceptors (d) Chelating complexes are formed by monodentate ligands […]

### The role of cryolite in the metallurgy of extraction of aluminium is to

The role of cryolite in the metallurgy of extraction of aluminium is to

Options

(a) increase the conductivity of the electrolyte (b) decrease the melting point of electrolyte (c) both (increases the conductivity […]

### Which is the amount of chlorine evolved when 2 amperes of current is passed for

Which is the amount of chlorine evolved when 2 amperes of current is passed for 30 minutes in an aqueous solution of NaCl

Options

(a) 33 g (b) 1.32 g (c) 66 g […]

### The lining of intestinal wall from outside to inside is made up of

The lining of intestinal wall from outside to inside is made up of

Options

(a) circular muscles → longitudinal muscles → mucosa → submucosa (b) longitudinal muscles → circular muscles → submucosa → […]

1 2 3 4 6