配制I2溶液时,加入固体KI,目的是为了(),增大I2的溶解度。A、增加盐效应B、利用同离子效应 C、降低水分子极性D、生成I3-离子

配制I2溶液时,加入固体KI,目的是为了(),增大I2的溶解度。

  • A、增加盐效应
  • B、利用同离子效应 
  • C、降低水分子极性
  • D、生成I3离子

相关考题:

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class Super {  public int i = 0;  public Super(String text) {  i = 1; }  }  public class Sub extends Super {  public Sub(String text) {  i = 2;  }   public static void main(String args[]) {  Sub sub = new Sub(“Hello”);  System.out.println(sub.i);  }  }  What is the result?()  A、 0B、 1C、 2D、 Compilation fails.

配制I2溶液时要滴加KI。

配制I2标准溶液时,加入KI的目的是增大I2溶解度以降低I2的挥发性和提高淀粉指示剂的灵敏度。

配制SnCl2溶液时,先加入一定量浓盐酸后再加水稀释,是为了(),而在SnCl2溶液中常加入Sn粒是为了()。

如何配制和保存I2溶液?配制I2溶液时为什么要滴加KI?

配制碘液加入KI的目的是()。

单选题class Super {  public int i = 0;  public Super(String text) {  i = 1; }  }  public class Sub extends Super {  public Sub(String text) {  i = 2;  }   public static void main(String args[]) {  Sub sub = new Sub(“Hello”);  System.out.println(sub.i);  }  }  What is the result?()A 0B 1C 2D Compilation fails.

问答题如何配制和保存I2溶液?配制I2溶液时为什么要滴加KI?

单选题class super (   public int I = 0;   public super (string text) (   I = 1   )   )     public class sub extends super (   public sub (string text) (   i= 2   )   public static void main (straing args) (  sub sub = new sub (“Hello”);   system.out. PrintIn(sub.i);  )   )   What is the result?()A Compilation will fail.B Compilation will succeed and the program will print “0”C Compilation will succeed and the program will print “1”D Compilation will succeed and the program will print “2”