HF present as impurity in gaseous F2 can be removed by passing over:

(1) P2O5

(2) NaF

(3) H2SO4

(4)_ CaCl2

गैसीय F2 में अशुद्धता के रूप में उपस्थित HF को किसे पारित करके निष्कासित किया जा सकता है:

(1) P2O5

(2) NaF

(3) H2SO4

(4) CaCl2

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Concentrated nitric acid reacts with iodine to give :

(1) HOI                             

(2) HI

(3) HIO3                         

(4) HIO4

सांद्र नाइट्रिक अम्ल आयोडीन के साथ अभिक्रिया कर देता है:

(a) HOI         (b) HI

(c) HIO3        (d) HIO4

 58%
From NCERT

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Cl2(g)+BaOH2  X(aq.)+BaCl2+H2O
           X+H2SO4   Y+BaSO4
                       Y >365K Z+H2O+O2

Y and Z are respectively :

(a) HCIO4, CIO2 

(b) HCIO3, CIO2

(c)  HCIO3, CIO6

(d) HCIO4, CI2O7

Cl2(g)+BaOH2  X(aq.)+BaCl2+H2O
           X+H2SO4   Y+BaSO4
                       Y >365K Z+H2O+O2

और क्रमशः हैं:

(a) HCIO4, CIO2 

(b) HCIO3, CIO2

(c)  HCIO3, CIO6

(d) HCIO4, CI2O7

From NCERT

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S-S bond is present in

(1)H2S2O7

(2)H2SO5

(3)H2S2O8

(4)H2S2O6

S-S बंध किसमें उपस्थित है?

(1) H2S2O7

(2) H2SO5

(3) H2S2O8

(4) H2S2O6

From NCERT

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Spirit of salt is:

(1) HBr

(2) HCl

(3) H2SO4

(4) HI

लवण का अम्ल है:

(1) HBr

(2) HCl

(3) H2SO4

(4) HI

From NCERT

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The molecule having the smallest bond angle is

(1) H2O

(2) H2S

(3) H2Te

(4) H2Se

सबसे छोटा बंधन कोण वाला अणु है

(A) H2O

(B) H2S

(C) H2Te

(D) H2Se

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Which hydride has the lowest boiling point?

1. H2O

2. H2S

3. H2Se

4. H2Te

किस हाइड्राइड में सबसे कम क्वथनांक होता है?

(1) H2O

(2) H2S

(3) H2Se

(4) H2Te

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Correct order of boiling point of group 16 hydrides 

1.H2O<H2S<H2Se<H2Te

2.H2Te<H2Se<H2S<H2O

3.H2S<H2Se<H2Te<H2O

4.H2O<H2Te<H2Se<H2S

वर्ग 16 हाइड्राइड के क्वथनांक का सही क्रम है 

(1) H2O<H2S<H2Se<H2Te

(2) H2Te<H2Se<H2S<H2O

(3) H2S<H2Se<H2Te<H2O

(4) H2O<H2Te<H2Se<H2S

 74%
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Decreasing order of reducing power hydrogen halides is:

(1) HI > HBr > HCl > HF

(2) HF > HI > HBr > HCl

(3) HI > HF > HBr > HCl

(4) None of these

हाइड्रोजन हैलाइडों की अपचयन क्षमता का घटता हुआ क्रम है:

(1) HI > HBr > HCl > HF

(2) HF > HI > HBr > HCl

(3) HI > HF > HBr > HCl

(4) इनमें से कोई नहीं

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HI reacts with HNO3 to form:

(1) O2

(2) N2O

(3) HIO3

(4) NO2+I2

HI क्या बनाने के लिए HNO3के साथ अभिक्रिया करता है?

(1) O2

(2) N2O

(3) HIO3

(4) NO2+I2

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