HTET Exam - Level 1 PRT - Chemistry

HTET exam Level 1 PRT preparation with Clear Cutoff

Question Details
Exam: HTET
Level: Level 1 PRT
State: Haryana
Subject: Chemistry
Questions: 240
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Question 121

Structure of the Atom
परमाणु की संरचना

Electronic configuration of a transition element X in +3 oxidation state is [Ar] 3d5.3d^{5}. What is its atomic number?

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एक संक्रमण तत्व X का +3 ऑक्सीकरण अवस्था में इलेक्ट्रॉनिक विन्यास [Ar] 3d53d^{5} है। उसका परमाणु क्रमांक क्या है ?

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Question 122

Structure of the Atom
परमाणु की संरचना

The number of radial node for 4p orbital is:

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4p कक्षक के लिए त्रिज्य नोड की संख्या है :

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Question 123

Structure of the Atom
परमाणु की संरचना

"Only two electrons may exist in the same orbital and these electrons must have opposite spin" is the statement of which of the following?

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"केवल दो इलेक्ट्रॉन एक कक्षक में रह सकते हैं। इन इलेक्ट्रॉनों के प्रचक्रण विपरीत होने चाहिए।" यह कथन निम्नलिखित में से किसका है ?

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Question 124

Structure of the Atom
परमाणु की संरचना

The half life period of 3685Kr{}_{36}^{85}Kr is 10 years. How long will it take for 99% of the 3685Kr{}_{36}^{85}Kr to disintegrate?

Choose an answer to reveal your result and explanation.

3685Kr{}_{36}^{85}Kr की अर्धायु अवधि 10 वर्ष है 3685Kr{}_{36}^{85}Kr के 99% को विघटित होने में कितना समय लगेगा ?

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Question 125

Structure of the Atom
परमाणु की संरचना

A free neutron decays spontaneously into a proton, an electron and _____.

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एक मुक्त न्यूट्रॉन स्वतः क्षय हो जाता है एक प्रोटॉन, एक इलेक्ट्रॉन और _____ में।

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Question 126

Structure of the Atom
परमाणु की संरचना

The four quantum numbers of the valence electron of potassium atom are :

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पोटैशियम परमाणु के इलेक्ट्रॉन की चारों क्वाण्टम संख्याएँ हैं :

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Question 127

Structure of the Atom
परमाणु की संरचना

How many valence electrons are not shared in the following molecule ? Cl–P(–Cl)–Cl

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निम्नलिखित अणु में कितने संयोजी इलेक्ट्रॉन साझित नहीं हैं ? Cl–P(–Cl)–Cl

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Question 128

Structure of the Atom
परमाणु की संरचना

An atom with 3 protons and 4 neutrons will have a valency of :

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एक परमाणु जिसमें 3 प्रोटॉन तथा 4 न्यूट्रॉन हैं, की संयोजकता होती है :

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Question 129

Structure of the Atom
परमाणु की संरचना

In which of the following pairs are the element found in the same period of the periodic table ?

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तत्त्वों के निम्नलिखित युग्मों में से कौन-सा आवर्त सारणी के समान आवर्त में उपस्थित हैं ?

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Question 130

Chemical Reactions & Equations
रासायनिक अभिक्रियाएँ एवं समीकरण

Which of the following is a disproportionation reaction?

Choose an answer to reveal your result and explanation.

निम्नलिखित में से कौन-सी एक असमानुपातन अभिक्रिया है ?

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Question 131

Chemical Reactions & Equations
रासायनिक अभिक्रियाएँ एवं समीकरण

The main product of the reduction of nitrobenzene in neutral solution with zinc dust and ammonium chloride is:

Choose an answer to reveal your result and explanation.

नाइट्रोबेन्जीन का उदासीन विलयन में यशद धूलि और अमोनियम क्लोराइड के साथ अपचयन का मुख्य उत्पाद है :

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Question 132

Chemical Reactions & Equations
रासायनिक अभिक्रियाएँ एवं समीकरण

Which of the following species do not show disproportionation reaction?

Choose an answer to reveal your result and explanation.

निम्नलिखित में से कौन-सी स्पीशीज़ असमानुपातन अभिक्रिया नहीं दिखाती ?

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Question 133

Chemical Reactions & Equations
रासायनिक अभिक्रियाएँ एवं समीकरण

Predict the product of the following reaction:

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निम्नलिखित अभिक्रिया के उत्पाद का अनुमान लगाइए :

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Question 134

Chemical Reactions & Equations
रासायनिक अभिक्रियाएँ एवं समीकरण

Which of the following reaction is not involved in thermite process?

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निम्नलिखित में से कौन-सी अभिक्रिया थर्माइट प्रक्रम से सम्बन्धित नहीं है ?

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Question 135

Chemical Reactions & Equations
रासायनिक अभिक्रियाएँ एवं समीकरण

The main product of the reduction of nitrobenzene in neutral solution with zinc dust and ammonium chloride is:

Choose an answer to reveal your result and explanation.

नाइट्रोबेंजीन का उदासीन विलयन में यशद धूलि और अमोनियम क्लोराइड के साथ अपचयन का मुख्य उत्पाद है :

Choose an answer to reveal your result and explanation.

Question 136

Chemical Reactions & Equations
रासायनिक अभिक्रियाएँ एवं समीकरण

In the reaction: 3Cl2+6NaOH→NaClO3+5NaCl+3H2O3Cl_{2}+6NaOH\rightarrow NaClO_{3}+5NaCl+3H_{2}O the element which loses as well as gains electrons is :

Choose an answer to reveal your result and explanation.

निम्नलिखित अभिक्रिया : 3Cl2+6NaOH→NaClO3+5NaCl+3H2O3Cl_{2}+6NaOH\rightarrow NaClO_{3}+5NaCl+3H_{2}O में वह तत्व जो इलेक्ट्रॉन त्यागता है तथा ग्रहण भी करता हैं :

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Question 137

Chemical Reactions & Equations
रासायनिक अभिक्रियाएँ एवं समीकरण

The coefficient of I−I^{-}, MnO4−MnO_{4}^{-} and H2OH_{2}O in the redox reaction
I−(aq)+MnO4−(aq)+H2O(l)→I2(s)+MnO2(s)+OH−(aq)I^{-}(aq)+MnO_{4}^{-}(aq)+H_{2}O(l)\rightarrow I_{2}(s) +MnO_{2}(s)+OH^{-}(aq)
in the balance form respectively are:

Choose an answer to reveal your result and explanation.

ऑक्सीकरण अपचयन अभिक्रिया में I−I^{-}, MnO4−MnO_{4}^{-} और H2OH_{2}O के गुणांक संतुलित अभिक्रिया में क्रमशः हैं :
I−(aq)+MnO4−(aq)+H2O(l)→I2(s)+MnO2(s)+OH−(aq)I^{-}(aq)+MnO_{4}^{-}(aq)+H_{2}O(l)\rightarrow I_{2}(s)+MnO_{2}(s)+OH^{-}(aq)

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Question 138

Chemical Reactions & Equations
रासायनिक अभिक्रियाएँ एवं समीकरण

In the following disproportionation reaction P4(s)+3OH−(aq)+3H2O(l)→PH3(g)+3H2PO2−P_{4}(s)+3OH^{-}(aq)+3H_{2}O(l)\rightarrow PH_{3}(g)+3H_{2}PO_{2}^{-}, the oxidation states of P in P4P_{4}, PH3PH_{3} and H2PO2−H_{2}PO_{2}^{-} are respectively:

Choose an answer to reveal your result and explanation.

निम्नलिखित असमानुपातन अभिक्रिया में P4(s)+3OH−(aq)+3H2O(l)→PH3(g)+3H2PO2−P_{4}(s)+3OH^{-}(aq)+3H_{2}O(l)\rightarrow PH_{3}(g)+3H_{2}PO_{2}^{-}, P की ऑक्सीकरण अवस्था P4P_{4}, PH3PH_{3} और H2PO2−H_{2}PO_{2}^{-} में क्रमशः है :

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Question 139

Chemical Reactions & Equations
रासायनिक अभिक्रियाएँ एवं समीकरण

Which of the following species do not show disproportionation reaction?

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निम्नलिखित में से कौन-सी स्पीशीज़ असमानुपातन अभिक्रिया नहीं दिखाती है ?

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Question 140

Chemical Reactions & Equations
रासायनिक अभिक्रियाएँ एवं समीकरण

Which of the following reactions are disproportionation reactions?
a. 2Cu+→Cu2++Cu2Cu^{+}\rightarrow Cu^{2+}+Cu
b. 3MnO42−+4H+→2MnO4−+MnO2+2H2O3MnO_{4}^{2-}+4H^{+}\rightarrow2MnO_{4}^{-}+ MnO_{2}+2H_{2}O
c. 2KMnO4→K2MnO4+MnO2+O22KMnO_{4}\rightarrow K_{2}MnO_{4}+MnO_{2}+ O_{2}
d. 10I−+2MnO4−+16H+→2Mn2++8H2O+5I210I^{-}+2MnO_{4}^{-}+16H^{+}\rightarrow2Mn^{2+} +8H_{2}O+5I_{2}

Choose an answer to reveal your result and explanation.

निम्नलिखित में से कौन-सी अभिक्रियाएँ असमानुपातन अभिक्रियाएँ हैं ?
a. 2Cu+→Cu2++Cu2Cu^{+}\rightarrow Cu^{2+}+Cu
b. 3MnO42−+4H+→2MnO4−+MnO2+2H2O3MnO_{4}^{2-}+4H^{+}\rightarrow2MnO_{4}^{-}+ MnO_{2}+2H_{2}O
c. 2KMnO4→K2MnO4+MnO2+O22KMnO_{4}\rightarrow K_{2}MnO_{4}+MnO_{2}+ O_{2}
d. 10I−+2MnO4−+16H+→2Mn2++8H2O+5I210I^{-}+2MnO_{4}^{-}+16H^{+}\rightarrow2Mn^{2+} +8H_{2}O+5I_{2}

Choose an answer to reveal your result and explanation.