In a balanced equation H2SO4+xHIH2S+yI2+zH2O, the values of x, y, z are ,

(1) x = 3, y = 5, z = 2

(2) x = 4, y = 8, z = 5

(3) x = 8, y = 4, z = 4

(4) x = 5, y = 3, z = 4

एक संतुलित समीकरण H2SO4+xHIH2S+yI2+zH2O में, x, y, z के मान हैं- 

(1) x = 3, y = 5, z = 2

(2) x = 4, y = 8, z = 5

(3) x = 8, y = 4, z = 4

(4) x = 5, y = 3, z = 4

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When KMnO4 acts as an oxidising agent and ultimately forms [MnO4]2,  MnO2,   Mn2O3,  Mn+2 then the number of electrons transferred in each case respectively is (1) 4, 3, 1, 5

(2) 1, 5, 3, 7

(3) 1, 3, 4, 5

(4) 3, 5, 7, 1

जब KMnO4 ऑक्सीकारक के रूप में कार्य करता है और अंततः [MnO4]2,  MnO2,   Mn2O3,  Mn+2 बनाता है तब क्रमशः प्रत्येक मामले में स्थानांतरित इलेक्ट्रॉनों की संख्या है:             [AIEEE 2002]

(1) 4, 3, 1, 5

(2) 1, 5, 3, 7

(3) 1, 3, 4, 5

(4) 3, 5, 7, 1

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In the reaction Na2S2O3 + 4Cl2 + 5H2O → Na2SO4 + H2SO4 + 8HCI the equivalent weight of Na2S2O3 will be

1. M/4

2. M/8

3. M/1

4. M/2

(M= molecular weight of Na2S2O3)

अभिक्रिया Na2S2O3 + 4Cl2 + 5H2O → Na2SO4 + H2SO4+ 8HCl में Na2S2O3 का तुल्यांकी भार होगा-

1. M/4

2. M/8

3. M/1

4. M/2

(M = Na2S2O3 का अणुभार )

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When Cl2 is converted into Cl- & ClO3- then n-factor of Clwill be:

1. 3/5

2. 5/3

3. 7/2

4. 2

जब Cl2, Cl- और ClO3- में परिवर्तित हो जाता है तब Cl2 का n-गुणक होगा:

1. 3/5

2. 5/3

3. 7/2

4. 2

 60%
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In the reaction

Al + Fe3O4 Al2O3 + Fe

total number of electrons transferred during reaction are:-

1. 6

2. 8

3. 8/3

4. 24

अभिक्रिया में

Al + Fe3O4 Al2O3 + Fe

अभिक्रिया के दौरान स्थानांतरित किए गए इलेक्ट्रॉनों की कुल संख्या हैं:-

1. 6

2. 8

3. 8/3

4. 24

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The equivalent mass of H3PO4 in the following reaction is,

H3PO+ Ca(OH)2 CaHPO4 + 2H2O

1. 98

2. 49

3. 32.66

4. 40

निम्नलिखित अभिक्रिया में H3PO4 का तुल्यांक द्रव्यमान है,

H3PO+ Ca(OH)2 CaHPO4 + 2H2O

(1) 98

(2) 49

(3) 32.66

(4) 40

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In which of the following processes nitrogen is oxidised?

1. NH4+ N2

2. NO3- NO

3. NO2 NO2-

4. NO3-NH4+ 

निम्नलिखित में से किस प्रक्रिया में नाइट्रोजन ऑक्सीकृत होता है?

1. NH4+ N2

2. NO3- NO

3. NO2 NO2-

4. NO3-NH4+ 

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In the preparation of chlorine from HCl; MnO2 acts as:

1. reducing agent

2. oxidising agent

3. catalytic agent

4. dehydrating agent

HCl से क्लोरीन के निर्माण में; MnO2 किस प्रकार कार्य करता है:

1. अपचायक 

2. ऑक्सीकारक 

3. उत्प्रेरकीय कर्मक 

4. निर्जलीकारक 

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Oxidation number of carbon in C3O2, Mg2C3 are respectively:

1. -4/3, +4/3 

2. +4/3, -4/3

3. -2/3, +2/3

4. -2/3, +4/3

 C3O2, Mg2Cमें क्रमशः कार्बन की ऑक्सीकरण संख्या हैं:

1. -4/3, +4/3

2. +4/3, -4/3

3. -2/3, +2/3

4. -2/3, +4/3

 71%
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15 gm Ba(MnO4)2 sample containing inert impurity is completely reacting with 100 ml of '11.2 V' H2O2, then what will be the % purity of Ba (MnO4)2 in the sample ? (Atomic mass Ba = 137, Mn = 55)

(1) 5%

(2) 10%

(3) 50%

(4) none

15 gm Ba(MnO4)2 नमूना अक्रिय अशुद्धता युक्त पूरी तरह से '11.2 V' H2Oके 100 ml के साथ अभिक्रिया कर रहा है, फिर नमूने में Ba(MnO4)2 की % शुद्धता क्या होगी? (परमाणु द्रव्यमान Ba = 137, Mn = 55)

(1) 5%

(2) 10%

(3) 50%

(4) कोई नहीं 

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