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@@ -99,166 +99,114 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Principles of Electron Paramagnetic Resonance Spectroscopy</h1><div class="content" id="experiment-article-section-6-content">
-<p>
-<div class="success"><h2 style="color:green;text-align:center">right answer!</h2></div>
-<div class="failure"><h2 style="color:red;text-align:center">oops, wrong answer!</h2></div>
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-		setTimeout("alert('You secured '+ count +' out of 9')",2000);
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+    var ans = ["3", "1", "1", "2", "0", "3", "3", "3", "3"];
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+    var q1,q2,q3,q4,q5,length;
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+    
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+    document.getElementById("ans").innerHTML = "COREECT ANSWERS <br> 1>D <br> 2>B <br> 3>B <br> 4>C <br> 5>A <br> 6>D <br> 7>D <br> 8>D <br> 9>D  <br>"
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-<form class="q1" name="q1">
+<form method ="post" name = "quiz">
 <p><b>1. What is the wavelength range of the radiation used in EPR spectroscopy?</b><br>
-<input id="q1" name="q1" onclick="checkAnswer1(this.value,1)" type="radio" value="0">X-Ray<br>
-<input id="q1" name="q1" onclick="checkAnswer1(this.value,1)" type="radio" value="1">Ultraviolet<br>
-<input id="q1" name="q1" onclick="checkAnswer1(this.value,1)" type="radio" value="2">Infrared<br>
-<input id="q1" name="q1" onclick="checkAnswer1(this.value,1)" type="radio" value="10">Microwave<br><br>
-</br></br></input></br></input></br></input></br></input></br></p></form>
-<form class="q2">
+<input id="q1" name="q1" type="radio" value="0">X-Ray<br>
+<input id="q1" name="q1" type="radio" value="1">Ultraviolet<br>
+<input id="q1" name="q1" type="radio" value="2">Infrared<br>
+<input id="q1" name="q1" type="radio" value="3">Microwave<br><br>
+</input></input></input></input></br></p>
+
 <p><b>2. EPR is the resonant absorption of microwave radiation by paramagnetic systems in the presence of</b><br>
-<input id="q2" name="q2" onclick="checkAnswer1(this.value,2)" type="radio" value="0">Electric Field<br>
-<input id="q2" name="q2" onclick="checkAnswer1(this.value,2)" type="radio" value="10">Magnetic Field<br>
-<input id="q2" name="q2" onclick="checkAnswer1(this.value,2)" type="radio" value="2">Both a and b<br>
-<input id="q2" name="q2" onclick="checkAnswer1(this.value,2)" type="radio" value="3">None of the above<br><br/></br></input></br></input></br></input></br></input></br></p>
-</form>
-<form class="q3">
+<input id="q2" name="q2" type="radio" value="0">Electric Field<br>
+<input id="q2" name="q2" type="radio" value="1">Magnetic Field<br>
+<input id="q2" name="q2" type="radio" value="2">Both a and b<br>
+<input id="q2" name="q2" type="radio" value="3">None of the above<br><br/></br></input></input></input></input></p>
+
 <p> <b>3. What causes the splitting of energy levels in a magnetic field?</b><br>
-<input id="q3" name="q3" onclick="checkAnswer1(this.value,3)" type="radio" value="0">Hund’s Rule<br>
-<input id="q3" name="q3" onclick="checkAnswer1(this.value,3)" type="radio" value="10">Zeeman Effect<br>
-<input id="q3" name="q3" onclick="checkAnswer1(this.value,3)" type="radio" value="2">van der Waals interactions<br>
-<input id="q3" name="q3" onclick="checkAnswer1(this.value,3)" type="radio" value="3">Aufbau Principle<br><br/></br></input></br></input></br></input></br></input></br></p>
-</form>
-<form class="q4">
+<input id="q3" name="q3" type="radio" value="0">Hund’s Rule<br>
+<input id="q3" name="q3" type="radio" value="1">Zeeman Effect<br>
+<input id="q3" name="q3" type="radio" value="2">van der Waals interactions<br>
+<input id="q3" name="q3" type="radio" value="3">Aufbau Principle<br><br/></br></input></input></input></input></p>
 <p> <b>4. EPR spectroscopy is a direct and definitive technique for detection and quantification of the following</b><br>
-<input id="q4" name="q4" onclick="checkAnswer1(this.value,4)" type="radio" value="0">Free radicals<br>
-<input id="q4" name="q4" onclick="checkAnswer1(this.value,4)" type="radio" value="1">Paramagnetic species<br>
-<input id="q4" name="q4" onclick="checkAnswer1(this.value,4)" type="radio" value="10">Both a and b<br>
-<input id="q4" name="q4" onclick="checkAnswer1(this.value,4)" type="radio" value="3">None of the above.<br><br/></br></input></br></input></br></input></br></input></br></p>
-</form>
-<form class="q5">
+<input id="q4" name="q4" type="radio" value="0">Free radicals<br>
+<input id="q4" name="q4" type="radio" value="1">Paramagnetic species<br>
+<input id="q4" name="q4" type="radio" value="2">Both a and b<br>
+<input id="q4" name="q4" type="radio" value="3">None of the above.<br><br/></br></input></input></input></input></p>
 <p> <b>5. What factor of a nucleus is directly related to the spectral line spacing and, in the simplest cases, is essentially the spacing itself.</b><br>
-<input id="q5" name="q5" onclick="checkAnswer1(this.value,5)" type="radio" value="10">Hyperfine splitting constant<br>
-<input id="q5" name="q5" onclick="checkAnswer1(this.value,5)" type="radio" value="1">Atom<br>
-<input id="q5" name="q5" onclick="checkAnswer1(this.value,5)" type="radio" value="2">Magnetic moment<br>
-<input id="q5" name="q5" onclick="checkAnswer1(this.value,5)" type="radio" value="3">Electron paramagnetic Resonance<br><br/></br></input></br></input></br></input></br></input></br></p>
-</form>
-<form class="q6">
+<input id="q5" name="q5" type="radio" value="0">Hyperfine splitting constant<br>
+<input id="q5" name="q5" type="radio" value="1">Atom<br>
+<input id="q5" name="q5" type="radio" value="2">Magnetic moment<br>
+<input id="q5" name="q5" type="radio" value="3">Electron paramagnetic Resonance<br></input></input></input></input></p><br><br>
 <p> <b>6. The basic physical concepts of EPR are analogous to this measurement study but it is electron spins that are excited instead of spins of atomic nuclei.</b><br>
-<input id="q6" name="q6" onclick="checkAnswer1(this.value,6)" type="radio" value="0">Magnetic Moment<br>
-<input id="q6" name="q6" onclick="checkAnswer1(this.value,6)" type="radio" value="1">NMR spectroscopy<br>
-<input id="q6" name="q6" onclick="checkAnswer1(this.value,6)" type="radio" value="2">Stable Nuclide<br>
-<input id="q6" name="q6" onclick="checkAnswer1(this.value,6)" type="radio" value="10">Nuclear Magnetic resonance<br><br/></br></input></br></input></br></input></br></input></br></p>
-</form>
-<form class="q7">
+<input id="q6" name="q6" type="radio" value="0">Magnetic Moment<br>
+<input id="q6" name="q6" type="radio" value="1">NMR spectroscopy<br>
+<input id="q6" name="q6" type="radio" value="2">Stable Nuclide<br>
+<input id="q6" name="q6" type="radio" value="3">Nuclear Magnetic resonance<br/></input></input></input></input></p><br><br>
 <p><b>7. Which of the following is not true for an unpaired electron interacting only with a magnetic field?</b><br>
-<input id="q7" name="q7" onclick="checkAnswer1(this.value,7)" type="radio" value="0">The energy difference between the two spin states increases linearly with increasing magnetic field strength<br>
-<input id="q7" name="q7" onclick="checkAnswer1(this.value,7)" type="radio" value="1">The energy levels are labeled by the projection of the electron spin on the direction of the magnetic field<br>
-<input id="q7" name="q7" onclick="checkAnswer1(this.value,7)" type="radio" value="2">The energy of the two spin states is equal when there is no applied magnetic field<br>
-<input id="q7" name="q7" onclick="checkAnswer1(this.value,7)" type="radio" value="10">The lower energy state occurs with the magnetic moment of the electron is aligned against the magnetic field<br><br/></br></input></br></input></br></input></br></input></br></p>
-</form>
-<form class="q8">
+<input id="q7" name="q7" type="radio" value="0">The energy difference between the two spin states increases linearly with increasing magnetic field strength<br>
+<input id="q7" name="q7" type="radio" value="1">The energy levels are labeled by the projection of the electron spin on the direction of the magnetic field<br>
+<input id="q7" name="q7" type="radio" value="2">The energy of the two spin states is equal when there is no applied magnetic field<br>
+<input id="q7" name="q7" type="radio" value="3">The lower energy state occurs with the magnetic moment of the electron is aligned against the magnetic field<br></input></input></input></input></p><br><br>
 <p> <b>8. Which of the following molecules can not be studied by EPR?</b><br>
-<input id="q8" name="q8" onclick="checkAnswer1(this.value,8)" type="radio" value="0">Free radicals in the solid, liquid or gaseous phases<br>
-<input id="q8" name="q8" onclick="checkAnswer1(this.value,8)" type="radio" value="1"> Paramagnetic transition metal complexes<br>
-<input id="q8" name="q8" onclick="checkAnswer1(this.value,8)" type="radio" value="2"> Systems with more than one unpaired electron<br>
-<input id="q8" name="q8" onclick="checkAnswer1(this.value,8)" type="radio" value="10">All of the above can be studied by EPR<br><br/></br></input></br></input></br></input></br></input></br></p>
-</form>
-<form class="q9">
+<input id="q8" name="q8" type="radio" value="0">Free radicals in the solid, liquid or gaseous phases<br>
+<input id="q8" name="q8" type="radio" value="1"> Paramagnetic transition metal complexes<br>
+<input id="q8" name="q8" type="radio" value="2"> Systems with more than one unpaired electron<br>
+<input id="q8" name="q8" type="radio" value="3">All of the above can be studied by EPR<br></input></input></input></input></p><br><br>
 <p> <b>9. EPR spectroscopy can be carried out by</b><br>
-<input id="q9" name="q9" onclick="checkAnswer1(this.value,9)" type="radio" value="0">Varying the magnetic field and holding the frequency constant<br>
-<input id="q9" name="q9" onclick="checkAnswer1(this.value,9)" type="radio" value="1">varying the frequency and holding the magnetic field constant<br>
-<input id="q9" name="q9" onclick="checkAnswer1(this.value,9)" type="radio" value="2">None of the above.<br>
-<input id="q9" name="q9" onclick="checkAnswer1(this.value,9)" type="radio" value="10">Both of the above<br><br/></br></input></br></input></br></input></br></input></br></p>
+<input id="q9" name="q9" type="radio" value="0">Varying the magnetic field and holding the frequency constant<br>
+<input id="q9" name="q9" type="radio" value="1">varying the frequency and holding the magnetic field constant<br>
+<input id="q9" name="q9" type="radio" value="2">None of the above.<br>
+<input id="q9" name="q9" type="radio" value="3">Both of the above<br><br/></br></input></input></input></input></p>
+<input class= "button" onclick = "eval();" type = "button" value="Evaluate"/>
+<input class="button" onclick="document.quiz.reset();" type="button" value="Reset"/>
+
 </form>
-<form class="q10">
-<h2>Solutions</h2><br>
-<p><b>1. What is the wavelength range of the radiation used in EPR spectroscopy?</b><br>
- X-Ray<br>
- Ultraviolet<br>
-Infrared<br>
-<span style="color:green">Microwave</span><br><br>
-<b>2. EPR is the resonant absorption of microwave radiation by paramagnetic systems in the presence of</b><br>
-Electric Field<br>
-<span style="color:green">Magnetic Field</span><br>
-Both a and b<br>
-None of the above<br><br>
-<b>3. What causes the splitting of energy levels in a magnetic field?</b><br>
-Hund’s Rule<br>
-<span style="color:green">Zeeman Effect</span><br>
-van der Waals interactions<br>
-Aufbau Principle<br><br>
-<b>4. EPR spectroscopy is a direct and definitive technique for detection and quantification of the following</b><br>
-Free radicals<br>
-Paramagnetic species<br>
-<span style="color:green">Both a and b</span><br>
-None of the above.<br><br>
-<b>5. What factor of a nucleus is directly related to the spectral line spacing and, in the simplest cases, is essentially the spacing itself.</b><br>
-<span style="color:green">Hyperfine splitting constant</span><br>
-Atom<br>
-Magnetic moment<br>
-Electron paramagnetic Resonance<br><br>
-<b>6. The basic physical concepts of EPR are analogous to this measurement study but it is electron spins that are excited instead of spins of atomic nuclei.</b><br>
-Magnetic Moment<br>
-NMR spectroscopy<br>
-Stable Nuclide<br>
-<span style="color:green">Nuclear Magnetic resonance</span><br><br>
-<b>7. Which of the following is not true for an unpaired electron interacting only with a magnetic field?</b><br>
-The energy difference between the two spin states increases linearly with increasing magnetic field strength<br>
-The energy levels are labeled by the projection of the electron spin on the direction of the magnetic field<br>
-The energy of the two spin states is equal when there is no applied magnetic field<br>
-<span style="color:green">The lower energy state occurs with the magnetic moment of the electron is aligned against the magnetic field</span><br><br>
-<b>8. Which of the following molecules can not be studied by EPR?</b><br>
-Free radicals in the solid, liquid or gaseous phases<br>
-Paramagnetic transition metal complexes<br>
-Systems with more than one unpaired electron<br>
-<span style="color:green">All of the above can be studied by EPR</span><br><br>
-<b>9. EPR spectroscopy can be carried out by</b><br>
-Varying the magnetic field and holding the frequency constant<br>
-varying the frequency and holding the magnetic field constant<br>
-None of the above.<br>
-<span style="color:green">Both of the above</span><br><br>
-</br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></p></br></form>
+<p id = "score"></p>
+<p id = "ans"></p>
 
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