TET-Ctet-Chemistry-set-37

Chemistry MCQs for all Competitive Exams SET-37
Chemistry Multiple Choice Questions

Chemistry Multiple Choice Questions(MCQ)
रसायन विज्ञान बहुविकल्पीय प्रश्न

Welcome to our exclusive collections of chemistry multiple choice questions with answers. All questions are of multiple choice type.In these MCQs sets we are going to share most important questions related to chemistry. These questions are very helpful for those candidates and aspirants who are preparing for the various government and non government exam as well as in interview.
इस पोस्ट में हम रसायन विज्ञान से सम्बंधित कई महत्वपूर्ण बहुविकल्पीय प्रश्न प्रस्तुत कर रहे है , जो कई प्रतियोगी परीक्षाओ में पूछे जाते है. जैसे TET, CTET, JEE, AIPMT, PMT, Police exams ,army exams, CDSE , SBI Clerk , SBIPO, PO, RRB , IBPS PO , PSc, State PSC, Patwari, Samvida, Teacher recruitment test, UPSC, SSC, CGL, SI, CTET, TET, CDS, MAT , SSC 10+2 , CLAT , NIFT , SBI , IBPS Clerk, Vyapam, आदि.

Chemistry MCQs for all Competitive Exams SET-37
रसायन विज्ञान बहुविकल्पीय प्रश्न


Question : 1-10

Question : 1

The enthalpy of formation of NH3 is –46 kJ mo1–1. The enthalpy change for the reaction :2NH3(g) → N2(g) + 3H2(g) is

[A].   +92kJ
[B].   +46 kJ
[C].   +184 kJ
[D].   +23 kJ


Question : 2

The condensation polymer among the following is

[A].   PVC
[B].   Polyethene
[C].   Rubber
[D].   Protein


Question : 3

The following data is obtained during the first order thermal decomposition of 2A(g) → B(g) + C(s) , at constant volume and temperature.

Sr. No.TimeTotal pressure in Pascal1.At the end of 10 minutes 3003002.After completion 200200

The rate constant in min–1is ______.

[A].   6.93
[B].   0.0693
[C].   69.3
[D].   0.00693


Question : 4

The correct order in which the first ionisation potential increases is

[A].   Na, K, Be
[B].   K, Na, Be
[C].   K, Be, Na
[D].   Be, Na, K


Question : 5

The freezing point depression constant for water is –1.86°Cm–1. If 5.00 g Na2SO4 is dissolved in 45.0 g H2O, the freezing point is changed by –3.82°C. Calculate the van’t Hoff factor for Na2SO4

[A].   0.381
[B].   2.05
[C].   2.63
[D].   3.11


Question : 6

The correct order of increasing bond length of C – H, C – O, C – C and C = C is

[A].   C – H < C – O < C – C < C = C
[B].   C – H < C = C < C – O < C – C
[C].   C – C < C = C < C – O < C – H
[D].   C – O < C – H < C – C < C = C


Question : 7

The function of Fe(OH)3 in the contact process is

[A].   To remove moisture
[B].   To remove dust particles
[C].   To remove arsenic impurity
[D].   To detect colloidal impurity


Question : 8

The correct order of ionisation energy of C, N, O, F is

[A].   C < N < O < F
[B].   C < O < N < F
[C].   F < O < N < C
[D].   F < N < C < O


Question : 9

The correct sequence of steps involved in the mechanism of Cannizzaro’s reaction is ______.

[A].   transfer of H–, transfer of H+ and nucleophilic attack
[B].   nucleophilic attack, transfer of H– and transfer of H+
[C].   electrophilic attack by OH–, transfer of H+ and transfer of H–
[D].   transfer of H+,nucleophilic attack and transfer of H–


Question : 10

The correct sequence of reactions to convert p-nitrophenol into quinol involves ______.

[A].   Hydrolysis, diazotization and reduction
[B].   Reduction, diazotization and hydrolysis
[C].   Diazotization, reduction and hydrolysis
[D].   Hydrolysis, reduction and diazotization





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TET-Ctet-Chemistry-set-36

Chemistry MCQs for all Competitive Exams SET-36
Chemistry Multiple Choice Questions

Chemistry Multiple Choice Questions(MCQ)
रसायन विज्ञान बहुविकल्पीय प्रश्न

Welcome to our exclusive collections of chemistry multiple choice questions with answers. All questions are of multiple choice type.In these MCQs sets we are going to share most important questions related to chemistry. These questions are very helpful for those candidates and aspirants who are preparing for the various government and non government exam as well as in interview.
इस पोस्ट में हम रसायन विज्ञान से सम्बंधित कई महत्वपूर्ण बहुविकल्पीय प्रश्न प्रस्तुत कर रहे है , जो कई प्रतियोगी परीक्षाओ में पूछे जाते है. जैसे TET, CTET, JEE, AIPMT, PMT, Police exams ,army exams, CDSE , SBI Clerk , SBIPO, PO, RRB , IBPS PO , PSc, State PSC, Patwari, Samvida, Teacher recruitment test, UPSC, SSC, CGL, SI, CTET, TET, CDS, MAT , SSC 10+2 , CLAT , NIFT , SBI , IBPS Clerk, Vyapam, आदि.

Chemistry MCQs for all Competitive Exams SET-36
रसायन विज्ञान बहुविकल्पीय प्रश्न


Question : 1-10

Question : 1

The complexes [Co (NH3)6] [Cr (CN)6] and [Cr(NH3)6] [Co(CN)6] are the examples of which type of isomerism?

[A].   Geometrical isomerism
[B].   Linkage isomerism
[C].   Ionization isomerism
[D].   Coordination isomerism


Question : 2

The angle strain in cyclobutane is

[A].   24°44′
[B].   29°16′
[C].   19°22′
[D].   9°44′


Question : 3

The compound obtained when acetaldehyde reacts with dilute aqueous sodium hydroxide exhibits ______.

[A].   optical isomerism
[B].   geometric isomerism
[C].   both optical and geometric isomerism
[D].   neither optical nor geometric isomerism


Question : 4

The basic principle of Cottnell’s precipitator is

[A].   Le-chatelier’s principle
[B].   peptisation
[C].   neutralisation of charge on colloidal particles
[D].   scattering of light


Question : 5

The compound on dehydrogenation gives a ketone. The original compound is

[A].   primary alcohol
[B].   secondary alcohol
[C].   tertiary alcohol
[D].   carboxylic acid


Question : 6

1

[A].   The d-electron configurations of Cr2+, Mn2+, Fe2+ and Co2+are d4, d5,d6 and d7 respectively. Which one of the following will exhibit minimum paramagnetic behaviour?

(At. nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)


[B].   [Cr(H2O)6]2+
[C].   [Mn(H2O)6]2+
[D].   [Fe(H2O)6]2+


Question : 7

The compound which forms acetaldehyde when heated with dilute NaOH is

[A].   1 Chloro ethane
[B].   1, 2 Dichloro ethane
[C].   1, 1 Dichloro ethane
[D].   1, 1, 1 Trichloro ethane


Question : 8

The electronic configuration of Cr3+is

[A].   [Ar]3d54s1
[B].   [Ar]3d24s1
[C].   [Ar]3d34s0
[D].   [Ar]3d44s2


Question : 9

The compound which is not founded during the dry distillation of a mixture of calcium format and calcium acetate is

[A].   Propanone
[B].   Ethanal
[C].   Methanal
[D].   Propanal


Question : 10

The empirical formula of a nonelectrolyte is C1H2O1. A solution containing 6 g of the compound exerts the same osmotic pressure as that of 0.05 M glucose solution at the same temperature. The molecular formula of the compound is ______.

[A].   C3H6O3
[B].   C2H4O2
[C].   C4H8O4
[D].   C5H10O5





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TET-Ctet-Chemistry-set-35

Chemistry MCQs for all Competitive Exams SET-35
Chemistry Multiple Choice Questions

Chemistry Multiple Choice Questions(MCQ)
रसायन विज्ञान बहुविकल्पीय प्रश्न

Welcome to our exclusive collections of chemistry multiple choice questions with answers. All questions are of multiple choice type.In these MCQs sets we are going to share most important questions related to chemistry. These questions are very helpful for those candidates and aspirants who are preparing for the various government and non government exam as well as in interview.
इस पोस्ट में हम रसायन विज्ञान से सम्बंधित कई महत्वपूर्ण बहुविकल्पीय प्रश्न प्रस्तुत कर रहे है , जो कई प्रतियोगी परीक्षाओ में पूछे जाते है. जैसे TET, CTET, JEE, AIPMT, PMT, Police exams ,army exams, CDSE , SBI Clerk , SBIPO, PO, RRB , IBPS PO , PSc, State PSC, Patwari, Samvida, Teacher recruitment test, UPSC, SSC, CGL, SI, CTET, TET, CDS, MAT , SSC 10+2 , CLAT , NIFT , SBI , IBPS Clerk, Vyapam, आदि.

Chemistry MCQs for all Competitive Exams SET-35
रसायन विज्ञान बहुविकल्पीय प्रश्न


Question : 1-10

Question : 1

The carbon-carbon bond length in Benzene is

[A].   in between C2H6 and C2H2
[B].   in between C2H4 and C2H2
[C].   in between C2H6 and C2H4
[D].   same as in C2H4


Question : 2

Standard electrode potential of three metals X, Y and Z are –1.2 V, +0.5 V and –3.0 V respectively. The reducing power of these metals will be

[A].   X > Y > Z
[B].   Y > Z > X
[C].   Y > X > Z
[D].   Z > X > Y


Question : 3

The characteristic not related to alkali metal is

[A].   low melting point
[B].   low electronegativity
[C].   high ionisation energy
[D].   their ions are isoelectronic with noble gases


Question : 4

The activation energy for a reaction at the temperature TK was found to be 2.303 RT J mol–1. The ratio of the rate constant to Arrhenius factor is ______.

[A].   10–2
[B].   10–1
[C].   2 ×10–2
[D].   2 ×10–3


Question : 5

The chemical name of anisole is

[A].   Ethanoic acid
[B].   Methoxy benzene
[C].   Propanone
[D].   Acetone


Question : 6

The amino acid which is not optically active is

[A].   glycine
[B].   alanine
[C].   serine
[D].   lactic acid


Question : 7

The colour of sky is due to

[A].   transmission of light
[B].   wavelength of scattered light
[C].   absorption of light by atmospheric gases
[D].   All of these


Question : 8

The amount of heat evolved when 500 cm3 of 0.1 M HCI is mixed with 200 cm3 of 0.2 M NaOH is ______.

[A].   1.292 kJ
[B].   2.292 kJ
[C].   3.392 kJ
[D].   0.292 kJ


Question : 9

The complex, [Pt (Py) (lNH3) Br Cl ] will have how many geometrical isomers?

[A].   2
[B].   3
[C].   4
[D].   0


Question : 10

The angle strain in cyclobutane is

[A].   24°44′
[B].   29°16′
[C].   19°22′
[D].   9°44′





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कृपया इन्हें भी पढ़ें




MCQs Practice Sets for Sure Success in all competitive exams



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