Ncert Solutions Chemistry Class 11th

Get insights from 2k questions on Ncert Solutions Chemistry Class 11th, answered by students, alumni, and experts. You may also ask and answer any question you like about Ncert Solutions Chemistry Class 11th

2k
Questions
0
Discussions
0
Active Users
29
Followers

Have a question about Ncert Solutions Chemistry Class 11th? Ask our experts

Ask Your Question

Keep it short & simple. Type complete word. Avoid abusive language.

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Class 11th

Most suitable salt which can be used for efficient clotting of blood will be:

1 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

Blood – Negatively charged colloid.

According to Hardy – Schulze Rule

FeCl₃ is more efficient for blood clotting

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th The d and f Block Elements

What is the correct order of the following elements with respect to their density?

2 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

Density = $\frac{m a s s}{v o l u m e}$

Cu > Co > Fe > Cr > Zn

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Class 11th

The average S – F bond energy in kJ mol^-1 of SF₆ is………… (Rounded off to the nearest integer) [Given : The values of standard enthalpy of formation of SF₆(g), S(g) and F(g) are – 1100, 275 and 80 kJ mol^-1 respectively.]

3 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

$S (g) + 6 F (g) \to S F_{6} (g)$

$Δ {H^{0}}_{R} = Δ {H^{0}}_{f} (S F_{6}) - Δ {H^{0}}_{f} (S) - 6 \times Δ {H^{0}}_{f} (F)$

= (-1100) - (275) -6 (80) = -1855

$Δ {H^{0}}_{S - F} = \frac{1855}{6} = 309.16 K J / m o l ≅ 309$

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Class 11th

Which pair oxides in acidic in nature?

1 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

Oxide Nature

CaO Basic

B₂O₃ Acidic

SiO₂

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Class 11th

The correct order of electron gain enthalpy is:

3 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

Kindly go through the solution

S > Se > Te > O

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Class 11th

Calgon is used for water treatment. Which of the following statement is NOT true about Calgon?

4 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

It does not contains 2^nd most abundant element by weight in earth crust because that is Si Calgon -> Na₂ [Na₄ (PO₃)₆]

$\to_{}^{W a t e r s o l u b l e} 2 N a^{+} {[N a_{4} {(P O_{3})}_{6}]}^{2 -}$

$\to_{}^{C a^{2 +}} 2 N a^{+} {[N a_{2} C a {(P O_{3})}_{6}]}^{2 -}$

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Class 11th

Which of the following forms of hydrogen emits low energy b - particles?

3 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

Tritium is radioactive and it decays into He³ during emission of b-radiation

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Thermodynamics

2.2g of nitrous oxide (N₂O) gas is cooled at a constant pressure of 1 atm from 310 K to 270 K causing the compression of the gas from 217.1mL to 167.75mL. The change in thermal energy of the process, $Δ U$ is ‘-x’ J. The value of ‘x’ is________. [Nearest Integer]

(Given : atomic mass of N = 14 g mol^-1 and of O = 16 g mol^-1.

Molar heat capacity of N₂O is 100 J K^-1 mol^-1)

6 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

Moles of N₂O= $\frac{2.2}{44} = \frac{1}{20}$

$Δ H = n C_{p} Δ T = \frac{1}{20} \times 100 (- 40) = - 200 J$

$Δ U = q_{p} + w$

$w = - P_{e x t} . Δ V$

$w = - 1 \frac{(167.75 - 217.1)}{1000} \times 101.3 J = + 5 J$

$Δ U = - 200 + 5 = 195 J$

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Class 11th

A box contains 0.90g of liquid water in equilibrium with water vapour at 27°C. The equilibrium vapour pressure of water at 27°C is 32.0 Torr. When the volume of the box is increased, some of the liquid water evaporates to maintain the equilibrium pressure. If all the liquid water evaporates, then the volume of the box must be________ litre. [Nearest Integer]

(Given : R = 0.082 L atm K^-1 mole^-1)

(Ignore the volume of the liquid water and assume water vapours behave as an ideal gas.)

4 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

$\frac{n R T}{P} = \frac{0.90 \times 0.0821 \times 300}{18 \times 32} \times 760 = 29.21 ≅ 29$

Upvote

New answer posted•a year ago

Ncert Solutions Chemistry Class 11th Class 11th

A white precipitate was formed when BaCl₂ was added to water extract of an inorganic salt. Further, a gas ‘X’ with characteristic odour was released when the formed white precipitate was dissolved in dilute HCl. The anion present in the inorganic salt is

3 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

$B a C l_{2} + S O_{3}^{2 -} \overset{}{\to} \underset{W h i t e}{B a S O_{3}} ↓ \overset{d i l . H C l}{\to} \underset{\begin{array}{l} b u r n i n g s u l p h u r \\ l i k e s m e l l \end{array}}{S O_{2} ↑}$

Upvote

Ncert Solutions Chemistry Class 11th

Questions

Discussions

Active Users

Followers