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1 / 20

At 90°C, pure water has [H3O+] =10–6.7 mol L–1 what is the value of KW at 90°C:-
90°C पर, शुद्ध जल में [H3O+] = 10-67 मोल/लीटर है तो 90°C पर Kw का मान होगा:

2 / 20

Which of the following is an acid salt :-
इनमें से अम्लीय लवण है:

3 / 20

Ionic product of water is equal to :-
जल का आयनिक गुणनफल होता है:

4 / 20

At 250C, the dissociation constant for pure water is given by :-
25°C ताप पर शुद्ध जल का वियोजन स्थिरांक है:

5 / 20

At 900 C, the pH of 0.1M NaCl aqueous solution is :-
90° C पर 0.1M NaCl जलीय विलयन की pH का मान होगा

6 / 20

Maximum efficiency of cationic hydrolysis will be shown by :-
धनायन जलअपघटन की अधिकतम दक्षता दर्शाता है

7 / 20

HCOO– + H2O \rightleftharpoons HCOOH + OH– is related:-
निम्न अभिक्रिया HCOO– + H2O \rightleftharpoons HCOOH + OH– से सम्बन्धित है :

8 / 20

Which of the following is a true statement :
निम्न में से कौनसा कथन सत्य है

9 / 20

Addition of H+ and OH– ion's concentration at 900C
90°C पर H+ व OH- आयनों की सांद्रता का योग

10 / 20

Correct statement for HCN weak acid at 250C temperature.:-
25°C ताप पर, दुर्बल अम्ल HCN के लिए सही पद है :

11 / 20

The common ion effect is shown by which of the following sets of solutions :-
किस सेट के विलयनों द्वारा सम आयनन प्रभाव प्रदर्शित किया जाता है :

12 / 20

Which is a basic salt :–
क्षारीय लवण है :

13 / 20

At 373 K, temp. the pH of pure H2O can be:-
373K ताप पर शुद्ध जल का pH होगा:

14 / 20

What will be the pH of 1.0 M ammonium formate solution, If Ka=1 × 10–4 acid Kb =1× 10–5:-
1.0 M अमोनियम फॉर्मेट के जलीय विलयन की pH क्या होगी, यदि Ka = 1 x 10-4 एवं Kb = 1 x 10-5 हो

15 / 20

Basic strength of NH4OH in presence of NH4Cl
NH4CI की उपस्थिति में NH4OH के क्षारीय गुण :

16 / 20

If it is known that H2S is a weak acid and it is ionised into 2H+ and S–2. Then in this solution HCl is added so, pH becomes less, then what will happen :-
यह ज्ञात है कि H2S एक दुर्बल अम्ल है तथा 2H+ एव S-2 में आयनित होता है तो HCI मिलाने पर H2S विलयन के pH मान में कमी होने पर निम्न घटित हो जाना चाहिए

17 / 20

Ionic product of water will increase, if :-
पानी का आयनिक गुणनफल बढ़ेगा, यदि :

18 / 20

The mixed salt among the following is :-
निम्न में से मिश्रित लवण है :

19 / 20

For water at 25° C, 2 × 10–7 moles per litre isthe correct answer for which one of the followoing
25°C जल के लिए 2 x 10-7 मोल प्रति लीटर किसका सही उत्तर है :

20 / 20

The process of neutralisation invariably results in the production of :-
उदासीनीकरण प्रक्रिया में निम्न उत्पाद अवश्य बनेगा :

Your score is

The average score is 60%


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