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

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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

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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

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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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Argon is used:

(1) to obtained low temperature

(2) in high temperature welding

(3) in radio-therapy for treatment of cancer

(4) in filling airships

आर्गन का उपयोग किया जाता है:

(1) कम तापमान प्राप्त करने के लिए

(2) उच्च तापमान वेल्डिंग में

(3) कैंसर के उपचार के लिए रेडियो-थेरेपी में

(4) वायुयान में भरने में

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The gas used in gas thermometer is:

(1) He

(2) O2

(3) Xe

(4) Ne

गैस थर्मामीटर में प्रयुक्त गैस है:

(1) He

(2) O2

(3) Xe

(4) Ne

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Welding of magnesium can be done in an atmosphere of:

(1) O2

(2) Ar

(3) N2

(4) all of these

किसके वातावरण में मैग्नीशियम की वेल्डिंग की जा सकती है?

(1) O2

(2) He

(3) N2

(4) ये सभी 

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