HTET Exam - Level 1 PRT - Chemistry

HTET exam Level 1 PRT preparation with Clear Cutoff

Question Details
Exam: HTET
Level: Level 1 PRT
State: Haryana
Subject: Chemistry
Questions: 240
Subject-wise questions

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Question 21

Matter in Our Surroundings
हमारे आस-पास के पदार्थ

Which of the following statement is not true?

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निम्नलिखित में से कौन-सा कथन सही नहीं है ?

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Question 22

Matter in Our Surroundings
हमारे आस-पास के पदार्थ

Which of the following has least value of 'packing efficiency' ?

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निम्न में से किसमें 'संकुलन दक्षता' का मान सबसे कम है ?

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Question 23

Matter in Our Surroundings
हमारे आस-पास के पदार्थ

A metal crystallizes in 2 cubic phases fcc and bcc whose unit lengths are 3.5 A∘ and 3.0 A∘ respectively. The ratio of their densities is :\text{A metal crystallizes in 2 cubic phases fcc and bcc whose unit lengths are 3.5 } A^\circ \text{ and 3.0 } A^\circ \text{ respectively. The ratio of their densities is :}

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एक धातु 2 घनीय अवस्थाओं fcc तथा bcc में क्रिस्टलीकृत होता है जिसकी इकाई सेल लम्बाइयाँ क्रमशः 3.5 A∘^\circ तथा 3.0 A∘^\circ and . हैं। इनके घनत्वों का अनुपात है :

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Question 24

Matter in Our Surroundings
हमारे आस-पास के पदार्थ

The apparatus given below is used to study the diffusion of a number of gases at the same temperature and pressure.

Which of the following pairs of gases would diffuse into vacuum at the same speed ? (Given atomic mass of H = 1 u, C = 12 u, N = 14 u, O = 16 u)

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नीचे दिए गए उपकरण समान ताप एवं दाब पर विभिन्न गैसों के विसरण का अध्ययन करने के लिए उपयोग में आता है।

निम्नलिखित में से गैसों का कौन-सा युग्म समान गति से निर्वात में विसरित होगा ? (दिया गया परमाण्वीय द्रव्यमान H = 1 u, C = 12 u, N = 14 u, O = 16 u)

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Question 25

Matter in Our Surroundings
हमारे आस-पास के पदार्थ

Which of the following statements are correct?
(i) Temperature changes during the change of a state.
(ii) Dry ice gets converted directly into gaseous state under normal atmospheric conditions.
(iii) Higher boiling points of liquid indicates weaker intermolecular forces.
(iv) Latent heat of vaporization is generally higher than the latent heat of fusion for a substance.
Correct option is :

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निम्नलिखित में से कौन-से कथन सही हैं ?
(i) अवस्था परिवर्तन के दौरान ताप परिवर्तित होता है।
(ii) सामान्य वायुमण्डलीय परिस्थितियों में शुष्क बर्फ सीधे गैसीय अवस्था में परिवर्तित हो जाती है।
(iii) द्रव का उच्च क्वथनांक, दुर्बल अन्तरआण्विक बलों को दर्शाता है।
(iv) किसी पदार्थ के लिए गलन की गुप्त ऊष्मा की तुलना में वाष्पन की गुप्त ऊष्मा अधिक होती है।
सही विकल्प है :

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Question 26

Matter in Our Surroundings
हमारे आस-पास के पदार्थ

Which of the following statement is incorrect about state of matter?

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द्रव्य की अवस्था के संदर्भ में निम्नलिखित में से कौन-सा कथन सही नहीं है ?

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Question 27

Matter in Our Surroundings
हमारे आस-पास के पदार्थ

For the reaction 2SO2+O2⇌2SO3;ΔH=−45 kcal, which one of the following statement is correct?\text{For the reaction } 2SO_2 + O_2 \rightleftharpoons 2SO_3; \Delta H = -45 \text{ kcal, which one of the following statement is correct?}

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अभिक्रिया 2SO2+O2⇌2SO3;ΔH=−452SO_2 + O_2 \rightleftharpoons 2SO_3; \Delta H = -45 kcal के लिए निम्न में से कौन-सा कथन सही है?

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Question 28

Matter in Our Surroundings
हमारे आस-पास के पदार्थ

Match List-I and List-II and choose the correct answer from the codes given below the lists :

List-I : \qquad\qquad \qquad \qquad \qquad List-II

(A.)N2O3⇌NO+NO2(A.) N_2O_3 \rightleftharpoons NO + NO_2\quad : (i) kp=kc(RT)k_p = k_c(RT)

(B.)2NH3⇌N2+3H2(B.) 2NH_3 \rightleftharpoons N_2 + 3H_2\quad : (ii) kc=kp(RT)k_c = k_p(RT)

(C.)2SO2+O2⇌2SO3(C.) 2SO_2 + O_2 \rightleftharpoons 2SO_3\quad : (iii) kc=kpk_c = k_p

(D.)N2+O2⇌2NO(D.) N_2 + O_2 \rightleftharpoons 2NO\qquad (iv) k_p = kc(RT)2k_c(RT)^2<br
Code :\text{Code :}

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सूची-I को सूची-II के साथ सुमेलित करें एवं सूची में नीचे दिये गये कूटों का उपयोग कर सही उत्तर का चयन करें :

सूची-I :\qquad\qquad \qquad\qquadसूची-II

(A.) N2O3⇌NO+NO2N_2O_3\rightleftharpoons NO+ NO_2\quad:(i) kp=kc(RT)k_p = k_c(RT)

(B.) 2NH3⇌N2+3H22NH_3 \rightleftharpoons N_2 + 3H_2\quad :(ii) kc=kp(RT)k_c = k_p(RT)

(C.) 2SO2+O2⇌2SO32SO_2 + O_2 \rightleftharpoons 2SO_3\quad:(iii) kc=kpk_c = k_p

(D.) N2+O2⇌2NON_2 + O_2 \rightleftharpoons 2NO\qquad :(iv) kp=kc(RT)2k_p = k_c(RT)^2

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Question 29

Matter in Our Surroundings
हमारे आस-पास के पदार्थ

\text{For the reaction } N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g) \Delta H = \text{-ve :}

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N2(g)+3H2(g)⇌2NH3N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g) Δ\Delta H = -ve अभिक्रिया के लिए :

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Question 30

Matter in Our Surroundings
हमारे आस-पास के पदार्थ

Which of the following condition is most favourable for converting gas into liquid?

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गैस को द्रव में परिवर्तित करने के लिए निम्नलिखित में से कौन-सी अवस्था सर्वाधिक अनुकूल है ?

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Question 31

Is Matter Around Us Pure?
क्या हमारे आस-पास के पदार्थ शुद्ध हैं?

With dilution the molar conductivity of a solution:

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किसी विलयन की तनुता बढ़ाने के साथ मोलर चालकता का मान :

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Question 32

Is Matter Around Us Pure?
क्या हमारे आस-पास के पदार्थ शुद्ध हैं?

The flocculating power of which of the following is highest for coagulation of Al2O3.xH2OAl_{2}O_{3}.xH_{2}O sol ?

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Al2O3.xH2OAl_{2}O_{3}.xH_{2}O सॉल के स्कंदन में निम्नलिखित में से किसकी ऊर्णन क्षमता उच्चतम है ?

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Question 33

Is Matter Around Us Pure?
क्या हमारे आस-पास के पदार्थ शुद्ध हैं?

The strongest reducing agent among the hydrides of Group 15 elements is:

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वर्ग 15 के तत्त्वों के हाइड्राइडों में सबसे प्रबल अपचायक है :

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Question 34

Is Matter Around Us Pure?
क्या हमारे आस-पास के पदार्थ शुद्ध हैं?

Which of the following is an example of solid solution?

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निम्नलिखित में से कौन-सा ठोस विलयन का उदाहरण है ?

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Question 35

Is Matter Around Us Pure?
क्या हमारे आस-पास के पदार्थ शुद्ध हैं?

Which one of the following does not exist?

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निम्नलिखित में से कौन-सा एक अस्तित्व में नहीं है ?

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Question 36

Is Matter Around Us Pure?
क्या हमारे आस-पास के पदार्थ शुद्ध हैं?

Which of the following is a high potency sweetner ?

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निम्नलिखित में से कौन-सा अधिक प्रबल मधुरक है?

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Question 37

Is Matter Around Us Pure?
क्या हमारे आस-पास के पदार्थ शुद्ध हैं?

λm∘\lambda_{m}^{\circ} for NaCl, HCl and NaAc are 126.4, 425.9 and 91.0Scm2mol−191.0 S cm^{2}mol^{-1} respectively, then λ∘\lambda^{\circ} for HAC is :

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NaCl, HCl एवम् NaAc के लिए λm∘\lambda_{m}^{\circ} क्रमशः 126.4, 425.9 एवं 91.0Scm2mol−191.0 S cm^{2}mol^{-1} है, तब HAC के लिए λ∘\lambda^{\circ} होगा :

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Question 38

Is Matter Around Us Pure?
क्या हमारे आस-पास के पदार्थ शुद्ध हैं?

The monomers of glyptal are:

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ग्लिप्टल के एकलक हैं :

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Question 39

Is Matter Around Us Pure?
क्या हमारे आस-पास के पदार्थ शुद्ध हैं?

Which of the following is non-reducing sugar ?

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निम्नलिखित में से कौन-सी अनअपचायी शर्करा है?

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Question 40

Is Matter Around Us Pure?
क्या हमारे आस-पास के पदार्थ शुद्ध हैं?

Kaolinite is an ore of which metal?

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केयोलिनाइट किस धातु की अयस्क है ?

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