11th Standard Syllabus & Materials

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TN 11th Tamil இயற்கை வேளாண்மை,சுற்றுச்சூழல் -செய்யுள் - மனோன்மணீயம் Important Questions And Answers Study Material - QB365 Set A

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11th Standard Chemistry English Medium Free Online Test Creative 1 Mark Questions - Part Three

Published on: 10/11/2020

Download Tamil Nadu 11th Standard Chemistry question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.

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Std: 11th Standard - Chemistry

chapter: - Model Question paper

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Questions:

Multiple Choice Question

9 x 1 = 9

Which of the following is a monoatomic gas in nature?

(a)

Oxygen

(b)

Hydrogen

(c)

Helium

(d)

Ozone

The mass of one mole of CaCl₂ is _____________.

(a)

55.5 g mol^-1

(b)

111 g mol^-1

(c)

222 g mol^-1

(d)

77.5 g mol^-1

Which one of the following alkali metals is highly reactive with water?

(a)

(b)

(c)

(d)

What are the values of n, I, m and s for 3p_x electron?

(a)

3,2,1,0

(b)

3,1,-1,+1/2

(c)

3,2,+1,-1/2

(d)

3,0,0,+1/2

The longest form of periodic table was constructed by______

(a)

Dmitri Mendeleev

(b)

Henry Moseley

(c)

Lothar Meyer

(d)

Newlands

Which of the following reactions increases the production of di-hydrogen from synthesis gas?

(a)

\(CH_4(g)+H_2O(g)\xrightarrow[Ni]{1270k}CO(g)+3H_2(g)\)

(b)

\(C(s)+H_2O(g)\xrightarrow{1270k}CO(g)+H_2(g)\)

(c)

\(CO(g)+H_2O(g)\xrightarrow[catalyst]{673k}CO(s)+H_2(g)\)

(d)

\(C_2H_6(g)+2H_2O(g)\xrightarrow[Ni]{1270k}2CO(g)+5H_2(g)\)

Partial pressure is given as ________________

(a)

\(\frac { mole\ fraction }{ total\ pressure } \)

(b)

mole fraction \(\times\) total pressure

(c)

\(\frac { mole\ fraction\times total\ pressure }{ 2 } \)

(d)

\(\frac { 2\times mole\ fraction }{ total\ pressure } \)

Mass number is equal to the ________

(a)

number of protons + number of electrons

(b)

number of protons + number of neutrons

(c)

number of neutrons + number of electrons

(d)

number of electrons

Identify the correct statement(s) with respect to the following reaction :
Zn + 2HCl \(\longrightarrow\) ZnCl₂ + H₂
(i) Zinc is acting as an oxidant
(ii) Chlorine is acting as a reductant
(iii) Hydrogen is not acting as an oxidant
(iv) Zn is acting as a reductant

(a)

only (ii)

(b)

only (iv)

(c)

both (ii) and (iii)

(d)

both (ii) and (i)

Assertion and reason

1 x 2 = 2

10.

Assertion: Na₂SO₄ is soluble in water but BaSO₄ is insoluble
Reason : Lattice energy of barium sulphate exceeds its hydration energy.
Codes:
(a) Both assertion and reason are true and reason is the correct explanation for assertion
(b) Both assertion and reason are true but reason is not the correct explanation for assertion
(c) Assertion is true but reason is false
(d) Both assertion and reason is false.