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Class 11 Chemistry Questions asked by Filo students

Question 41

pressures acting on

A

and

B

will be

$\frac{1}{6}$
$\frac{7}{8}$
$\frac{2}{5}$
$\frac{1}{4}$

Topic:

Hydrocarbons

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Question 42

Gas equation

p V = n RT

is obeyed by ideal gas in

Adiabatic process
Isothermal process
Both (a) and (b)
None of the above

Topic:

Hydrocarbons

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Question 43

Ordinary hydrogen is a mixture at:

$75%$ ortho $H_{2}$ $+ 25%$ para $H_{2}$
$50%$ ortho $H_{2}$ $+ 50%$ para $H_{2}$
$25%$ ortho $H_{2}$ $+ 75%$
$Ca (OH)$
$CaCO_{3}$

Topic:

Hydrocarbons

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Question 44

The critical temperature of water is higher than that of

O_{2}

because

H_{2} O

molecule has:

Fewer electrons
Two covalent bonds than oxygen
V-shape
Dipole moment

Topic:

Hydrocarbons

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Question 45

The exhausted Permutit is generally regenerated by percolating through it a solution of:

Sodium chloride
Calcium chloride
Magnesium chloride d) Potassium chloride

Topic:

Hydrocarbons

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Question 46

Which is not present in clear hard water?

$Mg (HCO_{3})_{2}$
$CaCl_{2}$
$MgSO_{4}$
$MgCO_{3}$

Topic:

Hydrocarbons

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Question 47

Equal masses of ethane and hydrogen are mixed in an empty container at

2 5^{\circ} C

. The fraction of the total pressure exerted by hydrogen is

$1 : 2$
$1 : 1$
$1 \cdot 16$
$15 : 16$

Topic:

Mole Concept & Redox

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Question 48

10 g each of

CH_{4}

and

O_{2}

are kept in cylinders of same volume under same temperatures, give the pressure ratio of two gases

$2 : 1$
$1 : 4$
$2 : 3$
$3 : 4$

Topic:

Mole Concept & Redox

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Question 49

96.

In Electrophilic substitution occurs at ortho/para at first

meta at first ring
ring

Topic:

Mole Concept & Redox

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Question 50

second ring 97. Zero inductive effect is shown by :

$C_{6} H_{5}$ -
$- H$
$CH_{3}$ -
$Cl -$

Topic:

Mole Concept & Redox

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Question 51

Zero inductive effect is shown by :

$C_{6} H_{5} -$
$- H$
$CH_{3} -$
$Cl -$

Topic:

Mole Concept & Redox

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Question 52

Number of milli moles in

1.0

gram of water

$1.0$
18
$55.55$
100

Topic:

Mole Concept & Redox

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Question 53

Maximum number of electrons are prosent in

$2.24$ lit. of $SO_{2}$ at N.T.P.
$0.2$ moles of $NH_{3}$
$1.5 gm$ atoms of oxygen
2 gram atoms of sulphur

Topic:

Mole Concept & Redox

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Question 54

[NCERT Pg. 109] 13. The shape of CIF molecule is INCER

^{3}

2
$1.5$
See-saw
3
$\frac{4}{3}$
Bent T-shape
Bent (V-shaped)
Trigonal planar

Topic:

Chemical Bonding

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Question 55

NO_{3}^{-}

ion, the number of bond pairs of electrons around nitrogen atom are [NCERT Pg. 115]

Topic:

Chemical Bonding

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Question 56

Intramolecular H-bonding is shown (9.) In which of the following molecules/ions, all the (i) bonds are not equal? [NCERT Pg. 108]

$XeF_{4}$
$BF_{4}^{⊖}$
$C_{2} H_{2}$
$SiF_{4}$

Topic:

Chemical Bonding

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Question 57

10. Correct Lewis representation of

O_{3}

molecule is [NCERT Pg. 108]

Topic:

Chemical Bonding

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Question 58

FULLMARK-20 SUB-CHEMISTRY TIME-1 hr TERM -2 +2 1 ST YEAR

Date 29 JAN 2022 1. Choose the correct answer. Group - A

Mass of electron is

Topic:

Atomic Structure

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Question 59

Plum-pudding model (ii) Watermelon model (iii) Planetary model (iv) Solar model

Mass of electron nearly equal to

Topic:

Atomic Structure

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Question 60

\frac{1}{1836} th

(ii) equal of that of hydrogen atom.

In Rutherford's scattering experiment

Topic:

Atomic Structure

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1 2 3 4 5 6 7

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Class 11 Chemistry Questions asked by Filo students

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